Home / 15,146.08-22,616.96-12,378.24

Finding the Fourth Proportional to 15,146.08, 22,616.96 and 12,378.24

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Solution

The fourth proportional to 15,146.08, 22,616.96 and 12,378.24 is: 18,483.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,146.08 : 22,616.96 = 12,378.24 : x
  2. Step 2: Convert to fraction form
    15,146.08/22,616.96 = 12,378.24/x
  3. Step 3: Cross multiply
    15,146.08x = 22,616.96 × 12,378.24
  4. Step 4: Simplify right side
    15,146.08x = 279,958,158.95
  5. Step 5: Solve for x
    x = 279,958,158.95/15,146.08
  6. Step 6: Final answer
    x = 18,483.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.