Home / 11,436.16-15,781.76-6,468.16

Finding the Fourth Proportional to 11,436.16, 15,781.76 and 6,468.16

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Solution

The fourth proportional to 11,436.16, 15,781.76 and 6,468.16 is: 8,925.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,436.16 : 15,781.76 = 6,468.16 : x
  2. Step 2: Convert to fraction form
    11,436.16/15,781.76 = 6,468.16/x
  3. Step 3: Cross multiply
    11,436.16x = 15,781.76 × 6,468.16
  4. Step 4: Simplify right side
    11,436.16x = 102,078,948.76
  5. Step 5: Solve for x
    x = 102,078,948.76/11,436.16
  6. Step 6: Final answer
    x = 8,925.98

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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.