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Finding the Fourth Proportional to 15,152.40, 22,723.08 and 5,288.88

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Solution

The fourth proportional to 15,152.40, 22,723.08 and 5,288.88 is: 7,931.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,152.40 : 22,723.08 = 5,288.88 : x
  2. Step 2: Convert to fraction form
    15,152.40/22,723.08 = 5,288.88/x
  3. Step 3: Cross multiply
    15,152.40x = 22,723.08 × 5,288.88
  4. Step 4: Simplify right side
    15,152.40x = 120,179,643.35
  5. Step 5: Solve for x
    x = 120,179,643.35/15,152.40
  6. Step 6: Final answer
    x = 7,931.39

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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.