Home / 7,510.72-11,248.80-4,218.88

Finding the Fourth Proportional to 7,510.72, 11,248.80 and 4,218.88

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Solution

The fourth proportional to 7,510.72, 11,248.80 and 4,218.88 is: 6,318.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,510.72 : 11,248.80 = 4,218.88 : x
  2. Step 2: Convert to fraction form
    7,510.72/11,248.80 = 4,218.88/x
  3. Step 3: Cross multiply
    7,510.72x = 11,248.80 × 4,218.88
  4. Step 4: Simplify right side
    7,510.72x = 47,457,337.34
  5. Step 5: Solve for x
    x = 47,457,337.34/7,510.72
  6. Step 6: Final answer
    x = 6,318.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.