Home / 9,124.04-13,687.50-3,931.40

Finding the Fourth Proportional to 9,124.04, 13,687.50 and 3,931.40

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Solution

The fourth proportional to 9,124.04, 13,687.50 and 3,931.40 is: 5,897.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,124.04 : 13,687.50 = 3,931.40 : x
  2. Step 2: Convert to fraction form
    9,124.04/13,687.50 = 3,931.40/x
  3. Step 3: Cross multiply
    9,124.04x = 13,687.50 × 3,931.40
  4. Step 4: Simplify right side
    9,124.04x = 53,811,037.50
  5. Step 5: Solve for x
    x = 53,811,037.50/9,124.04
  6. Step 6: Final answer
    x = 5,897.72

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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.