Home / 10,939.59-15,095.16-6,159.31

Finding the Fourth Proportional to 10,939.59, 15,095.16 and 6,159.31

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Solution

The fourth proportional to 10,939.59, 15,095.16 and 6,159.31 is: 8,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,939.59 : 15,095.16 = 6,159.31 : x
  2. Step 2: Convert to fraction form
    10,939.59/15,095.16 = 6,159.31/x
  3. Step 3: Cross multiply
    10,939.59x = 15,095.16 × 6,159.31
  4. Step 4: Simplify right side
    10,939.59x = 92,975,732.20
  5. Step 5: Solve for x
    x = 92,975,732.20/10,939.59
  6. Step 6: Final answer
    x = 8,499.01

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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.