Home / 10,139.29-14,001.80-9,587.07

Finding the Fourth Proportional to 10,139.29, 14,001.80 and 9,587.07

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Solution

The fourth proportional to 10,139.29, 14,001.80 and 9,587.07 is: 13,239.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,139.29 : 14,001.80 = 9,587.07 : x
  2. Step 2: Convert to fraction form
    10,139.29/14,001.80 = 9,587.07/x
  3. Step 3: Cross multiply
    10,139.29x = 14,001.80 × 9,587.07
  4. Step 4: Simplify right side
    10,139.29x = 134,236,188.79
  5. Step 5: Solve for x
    x = 134,236,188.79/10,139.29
  6. Step 6: Final answer
    x = 13,239.21

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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.