Home / 10,139.19-14,001.69-9,586.97

Finding the Fourth Proportional to 10,139.19, 14,001.69 and 9,586.97

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Solution

The fourth proportional to 10,139.19, 14,001.69 and 9,586.97 is: 13,239.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,139.19 : 14,001.69 = 9,586.97 : x
  2. Step 2: Convert to fraction form
    10,139.19/14,001.69 = 9,586.97/x
  3. Step 3: Cross multiply
    10,139.19x = 14,001.69 × 9,586.97
  4. Step 4: Simplify right side
    10,139.19x = 134,233,879.19
  5. Step 5: Solve for x
    x = 134,233,879.19/10,139.19
  6. Step 6: Final answer
    x = 13,239.11

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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.