Home / 14,157.20-19,516.68-9,439.76

Finding the Fourth Proportional to 14,157.20, 19,516.68 and 9,439.76

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Solution

The fourth proportional to 14,157.20, 19,516.68 and 9,439.76 is: 13,013.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,157.20 : 19,516.68 = 9,439.76 : x
  2. Step 2: Convert to fraction form
    14,157.20/19,516.68 = 9,439.76/x
  3. Step 3: Cross multiply
    14,157.20x = 19,516.68 × 9,439.76
  4. Step 4: Simplify right side
    14,157.20x = 184,232,775.20
  5. Step 5: Solve for x
    x = 184,232,775.20/14,157.20
  6. Step 6: Final answer
    x = 13,013.36

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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.