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Finding the Fourth Proportional to 9,927.47, 14,859.25 and 5,240.79

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Solution

The fourth proportional to 9,927.47, 14,859.25 and 5,240.79 is: 7,844.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,927.47 : 14,859.25 = 5,240.79 : x
  2. Step 2: Convert to fraction form
    9,927.47/14,859.25 = 5,240.79/x
  3. Step 3: Cross multiply
    9,927.47x = 14,859.25 × 5,240.79
  4. Step 4: Simplify right side
    9,927.47x = 77,874,195.71
  5. Step 5: Solve for x
    x = 77,874,195.71/9,927.47
  6. Step 6: Final answer
    x = 7,844.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.