Home / 8,312.16-11,473.18-4,912.32

Finding the Fourth Proportional to 8,312.16, 11,473.18 and 4,912.32

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Solution

The fourth proportional to 8,312.16, 11,473.18 and 4,912.32 is: 6,780.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.16 : 11,473.18 = 4,912.32 : x
  2. Step 2: Convert to fraction form
    8,312.16/11,473.18 = 4,912.32/x
  3. Step 3: Cross multiply
    8,312.16x = 11,473.18 × 4,912.32
  4. Step 4: Simplify right side
    8,312.16x = 56,359,931.58
  5. Step 5: Solve for x
    x = 56,359,931.58/8,312.16
  6. Step 6: Final answer
    x = 6,780.42

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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.