Home / 10,867.47-14,997.29-8,480.13

Finding the Fourth Proportional to 10,867.47, 14,997.29 and 8,480.13

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Solution

The fourth proportional to 10,867.47, 14,997.29 and 8,480.13 is: 11,702.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,867.47 : 14,997.29 = 8,480.13 : x
  2. Step 2: Convert to fraction form
    10,867.47/14,997.29 = 8,480.13/x
  3. Step 3: Cross multiply
    10,867.47x = 14,997.29 × 8,480.13
  4. Step 4: Simplify right side
    10,867.47x = 127,178,968.85
  5. Step 5: Solve for x
    x = 127,178,968.85/10,867.47
  6. Step 6: Final answer
    x = 11,702.72

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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.