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Finding the Fourth Proportional to 15,808.21, 23,705.29 and 8,411.11

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Solution

The fourth proportional to 15,808.21, 23,705.29 and 8,411.11 is: 12,612.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,808.21 : 23,705.29 = 8,411.11 : x
  2. Step 2: Convert to fraction form
    15,808.21/23,705.29 = 8,411.11/x
  3. Step 3: Cross multiply
    15,808.21x = 23,705.29 × 8,411.11
  4. Step 4: Simplify right side
    15,808.21x = 199,387,641.19
  5. Step 5: Solve for x
    x = 199,387,641.19/15,808.21
  6. Step 6: Final answer
    x = 12,612.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.