Home / 14,337.55-21,509.01-6,439.87

Finding the Fourth Proportional to 14,337.55, 21,509.01 and 6,439.87

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Solution

The fourth proportional to 14,337.55, 21,509.01 and 6,439.87 is: 9,661.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,337.55 : 21,509.01 = 6,439.87 : x
  2. Step 2: Convert to fraction form
    14,337.55/21,509.01 = 6,439.87/x
  3. Step 3: Cross multiply
    14,337.55x = 21,509.01 × 6,439.87
  4. Step 4: Simplify right side
    14,337.55x = 138,515,174.46
  5. Step 5: Solve for x
    x = 138,515,174.46/14,337.55
  6. Step 6: Final answer
    x = 9,661.01

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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.