Home / 15,547.64-21,455.20-8,473.92

Finding the Fourth Proportional to 15,547.64, 21,455.20 and 8,473.92

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Solution

The fourth proportional to 15,547.64, 21,455.20 and 8,473.92 is: 11,693.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.64 : 21,455.20 = 8,473.92 : x
  2. Step 2: Convert to fraction form
    15,547.64/21,455.20 = 8,473.92/x
  3. Step 3: Cross multiply
    15,547.64x = 21,455.20 × 8,473.92
  4. Step 4: Simplify right side
    15,547.64x = 181,809,648.38
  5. Step 5: Solve for x
    x = 181,809,648.38/15,547.64
  6. Step 6: Final answer
    x = 11,693.71

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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.