Home / 13,035.13-17,988.60-7,066.78

Finding the Fourth Proportional to 13,035.13, 17,988.60 and 7,066.78

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Solution

The fourth proportional to 13,035.13, 17,988.60 and 7,066.78 is: 9,752.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,035.13 : 17,988.60 = 7,066.78 : x
  2. Step 2: Convert to fraction form
    13,035.13/17,988.60 = 7,066.78/x
  3. Step 3: Cross multiply
    13,035.13x = 17,988.60 × 7,066.78
  4. Step 4: Simplify right side
    13,035.13x = 127,121,478.71
  5. Step 5: Solve for x
    x = 127,121,478.71/13,035.13
  6. Step 6: Final answer
    x = 9,752.23

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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.