Home / 15,547.25-21,455.19-8,473.68

Finding the Fourth Proportional to 15,547.25, 21,455.19 and 8,473.68

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Solution

The fourth proportional to 15,547.25, 21,455.19 and 8,473.68 is: 11,693.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.25 : 21,455.19 = 8,473.68 : x
  2. Step 2: Convert to fraction form
    15,547.25/21,455.19 = 8,473.68/x
  3. Step 3: Cross multiply
    15,547.25x = 21,455.19 × 8,473.68
  4. Step 4: Simplify right side
    15,547.25x = 181,804,335.80
  5. Step 5: Solve for x
    x = 181,804,335.80/15,547.25
  6. Step 6: Final answer
    x = 11,693.66

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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.