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Finding the Fourth Proportional to 15,152.70, 22,742.55 and 8,904.90

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Solution

The fourth proportional to 15,152.70, 22,742.55 and 8,904.90 is: 13,365.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,152.70 : 22,742.55 = 8,904.90 : x
  2. Step 2: Convert to fraction form
    15,152.70/22,742.55 = 8,904.90/x
  3. Step 3: Cross multiply
    15,152.70x = 22,742.55 × 8,904.90
  4. Step 4: Simplify right side
    15,152.70x = 202,520,133.50
  5. Step 5: Solve for x
    x = 202,520,133.50/15,152.70
  6. Step 6: Final answer
    x = 13,365.28

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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.