Home / 13,071.55-18,038.81-7,103.26

Finding the Fourth Proportional to 13,071.55, 18,038.81 and 7,103.26

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Solution

The fourth proportional to 13,071.55, 18,038.81 and 7,103.26 is: 9,802.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,071.55 : 18,038.81 = 7,103.26 : x
  2. Step 2: Convert to fraction form
    13,071.55/18,038.81 = 7,103.26/x
  3. Step 3: Cross multiply
    13,071.55x = 18,038.81 × 7,103.26
  4. Step 4: Simplify right side
    13,071.55x = 128,134,357.52
  5. Step 5: Solve for x
    x = 128,134,357.52/13,071.55
  6. Step 6: Final answer
    x = 9,802.54

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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.