Home / 15,015.30-22,490.55-12,423.30

Finding the Fourth Proportional to 15,015.30, 22,490.55 and 12,423.30

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Solution

The fourth proportional to 15,015.30, 22,490.55 and 12,423.30 is: 18,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,015.30 : 22,490.55 = 12,423.30 : x
  2. Step 2: Convert to fraction form
    15,015.30/22,490.55 = 12,423.30/x
  3. Step 3: Cross multiply
    15,015.30x = 22,490.55 × 12,423.30
  4. Step 4: Simplify right side
    15,015.30x = 279,406,849.82
  5. Step 5: Solve for x
    x = 279,406,849.82/15,015.30
  6. Step 6: Final answer
    x = 18,608.14

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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.