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Finding the Fourth Proportional to 15,008.10, 22,512.15 and 12,602.40

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Solution

The fourth proportional to 15,008.10, 22,512.15 and 12,602.40 is: 18,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.10 : 22,512.15 = 12,602.40 : x
  2. Step 2: Convert to fraction form
    15,008.10/22,512.15 = 12,602.40/x
  3. Step 3: Cross multiply
    15,008.10x = 22,512.15 × 12,602.40
  4. Step 4: Simplify right side
    15,008.10x = 283,707,119.16
  5. Step 5: Solve for x
    x = 283,707,119.16/15,008.10
  6. Step 6: Final answer
    x = 18,903.60

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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.