Home / 9,000.64-12,423.52-5,690.56

Finding the Fourth Proportional to 9,000.64, 12,423.52 and 5,690.56

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Solution

The fourth proportional to 9,000.64, 12,423.52 and 5,690.56 is: 7,854.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.64 : 12,423.52 = 5,690.56 : x
  2. Step 2: Convert to fraction form
    9,000.64/12,423.52 = 5,690.56/x
  3. Step 3: Cross multiply
    9,000.64x = 12,423.52 × 5,690.56
  4. Step 4: Simplify right side
    9,000.64x = 70,696,785.97
  5. Step 5: Solve for x
    x = 70,696,785.97/9,000.64
  6. Step 6: Final answer
    x = 7,854.64

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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.