Home / 12,520.40-17,277.72-6,931.04

Finding the Fourth Proportional to 12,520.40, 17,277.72 and 6,931.04

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Solution

The fourth proportional to 12,520.40, 17,277.72 and 6,931.04 is: 9,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.40 : 17,277.72 = 6,931.04 : x
  2. Step 2: Convert to fraction form
    12,520.40/17,277.72 = 6,931.04/x
  3. Step 3: Cross multiply
    12,520.40x = 17,277.72 × 6,931.04
  4. Step 4: Simplify right side
    12,520.40x = 119,752,568.43
  5. Step 5: Solve for x
    x = 119,752,568.43/12,520.40
  6. Step 6: Final answer
    x = 9,564.60

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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.