Home / 16,779.12-25,163.28-5,089.20

Finding the Fourth Proportional to 16,779.12, 25,163.28 and 5,089.20

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Solution

The fourth proportional to 16,779.12, 25,163.28 and 5,089.20 is: 7,632.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,779.12 : 25,163.28 = 5,089.20 : x
  2. Step 2: Convert to fraction form
    16,779.12/25,163.28 = 5,089.20/x
  3. Step 3: Cross multiply
    16,779.12x = 25,163.28 × 5,089.20
  4. Step 4: Simplify right side
    16,779.12x = 128,060,964.58
  5. Step 5: Solve for x
    x = 128,060,964.58/16,779.12
  6. Step 6: Final answer
    x = 7,632.16

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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.