Home / 15,646.08-21,591.86-8,572.89

Finding the Fourth Proportional to 15,646.08, 21,591.86 and 8,572.89

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Solution

The fourth proportional to 15,646.08, 21,591.86 and 8,572.89 is: 11,830.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,646.08 : 21,591.86 = 8,572.89 : x
  2. Step 2: Convert to fraction form
    15,646.08/21,591.86 = 8,572.89/x
  3. Step 3: Cross multiply
    15,646.08x = 21,591.86 × 8,572.89
  4. Step 4: Simplify right side
    15,646.08x = 185,104,597.81
  5. Step 5: Solve for x
    x = 185,104,597.81/15,646.08
  6. Step 6: Final answer
    x = 11,830.73

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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.