Home / 13,071.47-18,038.73-7,103.17

Finding the Fourth Proportional to 13,071.47, 18,038.73 and 7,103.17

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Solution

The fourth proportional to 13,071.47, 18,038.73 and 7,103.17 is: 9,802.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,071.47 : 18,038.73 = 7,103.17 : x
  2. Step 2: Convert to fraction form
    13,071.47/18,038.73 = 7,103.17/x
  3. Step 3: Cross multiply
    13,071.47x = 18,038.73 × 7,103.17
  4. Step 4: Simplify right side
    13,071.47x = 128,132,085.16
  5. Step 5: Solve for x
    x = 128,132,085.16/13,071.47
  6. Step 6: Final answer
    x = 9,802.43

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.