Home / 8,913.24-12,304.70-6,919.32

Finding the Fourth Proportional to 8,913.24, 12,304.70 and 6,919.32

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Solution

The fourth proportional to 8,913.24, 12,304.70 and 6,919.32 is: 9,552.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,913.24 : 12,304.70 = 6,919.32 : x
  2. Step 2: Convert to fraction form
    8,913.24/12,304.70 = 6,919.32/x
  3. Step 3: Cross multiply
    8,913.24x = 12,304.70 × 6,919.32
  4. Step 4: Simplify right side
    8,913.24x = 85,140,156.80
  5. Step 5: Solve for x
    x = 85,140,156.80/8,913.24
  6. Step 6: Final answer
    x = 9,552.10

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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.