Home / 18,737.46-25,857.72-10,779.53

Finding the Fourth Proportional to 18,737.46, 25,857.72 and 10,779.53

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Solution

The fourth proportional to 18,737.46, 25,857.72 and 10,779.53 is: 14,875.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737.46 : 25,857.72 = 10,779.53 : x
  2. Step 2: Convert to fraction form
    18,737.46/25,857.72 = 10,779.53/x
  3. Step 3: Cross multiply
    18,737.46x = 25,857.72 × 10,779.53
  4. Step 4: Simplify right side
    18,737.46x = 278,733,939.18
  5. Step 5: Solve for x
    x = 278,733,939.18/18,737.46
  6. Step 6: Final answer
    x = 14,875.76

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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.