Home / 15,547.20-21,455.16-8,473.44

Finding the Fourth Proportional to 15,547.20, 21,455.16 and 8,473.44

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Solution

The fourth proportional to 15,547.20, 21,455.16 and 8,473.44 is: 11,693.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.20 : 21,455.16 = 8,473.44 : x
  2. Step 2: Convert to fraction form
    15,547.20/21,455.16 = 8,473.44/x
  3. Step 3: Cross multiply
    15,547.20x = 21,455.16 × 8,473.44
  4. Step 4: Simplify right side
    15,547.20x = 181,799,010.95
  5. Step 5: Solve for x
    x = 181,799,010.95/15,547.20
  6. Step 6: Final answer
    x = 11,693.36

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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.