Home / 16,779.40-25,185.30-10,218.40

Finding the Fourth Proportional to 16,779.40, 25,185.30 and 10,218.40

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Solution

The fourth proportional to 16,779.40, 25,185.30 and 10,218.40 is: 15,337.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,779.40 : 25,185.30 = 10,218.40 : x
  2. Step 2: Convert to fraction form
    16,779.40/25,185.30 = 10,218.40/x
  3. Step 3: Cross multiply
    16,779.40x = 25,185.30 × 10,218.40
  4. Step 4: Simplify right side
    16,779.40x = 257,353,469.52
  5. Step 5: Solve for x
    x = 257,353,469.52/16,779.40
  6. Step 6: Final answer
    x = 15,337.47

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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.