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Finding the Fourth Proportional to 15,547.08, 21,454.32 and 8,473.08

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Solution

The fourth proportional to 15,547.08, 21,454.32 and 8,473.08 is: 11,692.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.08 : 21,454.32 = 8,473.08 : x
  2. Step 2: Convert to fraction form
    15,547.08/21,454.32 = 8,473.08/x
  3. Step 3: Cross multiply
    15,547.08x = 21,454.32 × 8,473.08
  4. Step 4: Simplify right side
    15,547.08x = 181,784,169.71
  5. Step 5: Solve for x
    x = 181,784,169.71/15,547.08
  6. Step 6: Final answer
    x = 11,692.50

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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.