Home / 8,345.12-11,516.40-4,618.88

Finding the Fourth Proportional to 8,345.12, 11,516.40 and 4,618.88

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Solution

The fourth proportional to 8,345.12, 11,516.40 and 4,618.88 is: 6,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,345.12 : 11,516.40 = 4,618.88 : x
  2. Step 2: Convert to fraction form
    8,345.12/11,516.40 = 4,618.88/x
  3. Step 3: Cross multiply
    8,345.12x = 11,516.40 × 4,618.88
  4. Step 4: Simplify right side
    8,345.12x = 53,192,869.63
  5. Step 5: Solve for x
    x = 53,192,869.63/8,345.12
  6. Step 6: Final answer
    x = 6,374.13

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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.