Home / 13,071.66-18,038.99-7,103.33

Finding the Fourth Proportional to 13,071.66, 18,038.99 and 7,103.33

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Solution

The fourth proportional to 13,071.66, 18,038.99 and 7,103.33 is: 9,802.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,071.66 : 18,038.99 = 7,103.33 : x
  2. Step 2: Convert to fraction form
    13,071.66/18,038.99 = 7,103.33/x
  3. Step 3: Cross multiply
    13,071.66x = 18,038.99 × 7,103.33
  4. Step 4: Simplify right side
    13,071.66x = 128,136,894.05
  5. Step 5: Solve for x
    x = 128,136,894.05/13,071.66
  6. Step 6: Final answer
    x = 9,802.65

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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.