Home / 13,925.78-20,864.35-11,600.72

Finding the Fourth Proportional to 13,925.78, 20,864.35 and 11,600.72

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Solution

The fourth proportional to 13,925.78, 20,864.35 and 11,600.72 is: 17,380.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.78 : 20,864.35 = 11,600.72 : x
  2. Step 2: Convert to fraction form
    13,925.78/20,864.35 = 11,600.72/x
  3. Step 3: Cross multiply
    13,925.78x = 20,864.35 × 11,600.72
  4. Step 4: Simplify right side
    13,925.78x = 242,041,482.33
  5. Step 5: Solve for x
    x = 242,041,482.33/13,925.78
  6. Step 6: Final answer
    x = 17,380.82

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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.