Home / 10,963.86-15,127.89-6,246.90

Finding the Fourth Proportional to 10,963.86, 15,127.89 and 6,246.90

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Solution

The fourth proportional to 10,963.86, 15,127.89 and 6,246.90 is: 8,619.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.86 : 15,127.89 = 6,246.90 : x
  2. Step 2: Convert to fraction form
    10,963.86/15,127.89 = 6,246.90/x
  3. Step 3: Cross multiply
    10,963.86x = 15,127.89 × 6,246.90
  4. Step 4: Simplify right side
    10,963.86x = 94,502,416.04
  5. Step 5: Solve for x
    x = 94,502,416.04/10,963.86
  6. Step 6: Final answer
    x = 8,619.45

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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.