Home / 18,487.17-25,509.33-10,529.55

Finding the Fourth Proportional to 18,487.17, 25,509.33 and 10,529.55

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Solution

The fourth proportional to 18,487.17, 25,509.33 and 10,529.55 is: 14,529.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,487.17 : 25,509.33 = 10,529.55 : x
  2. Step 2: Convert to fraction form
    18,487.17/25,509.33 = 10,529.55/x
  3. Step 3: Cross multiply
    18,487.17x = 25,509.33 × 10,529.55
  4. Step 4: Simplify right side
    18,487.17x = 268,601,765.70
  5. Step 5: Solve for x
    x = 268,601,765.70/18,487.17
  6. Step 6: Final answer
    x = 14,529.09

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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.