Home / 9,780.08-14,660.40-5,615.04

Finding the Fourth Proportional to 9,780.08, 14,660.40 and 5,615.04

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Solution

The fourth proportional to 9,780.08, 14,660.40 and 5,615.04 is: 8,416.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,780.08 : 14,660.40 = 5,615.04 : x
  2. Step 2: Convert to fraction form
    9,780.08/14,660.40 = 5,615.04/x
  3. Step 3: Cross multiply
    9,780.08x = 14,660.40 × 5,615.04
  4. Step 4: Simplify right side
    9,780.08x = 82,318,732.42
  5. Step 5: Solve for x
    x = 82,318,732.42/9,780.08
  6. Step 6: Final answer
    x = 8,416.98

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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.