Home / 17,378.50-24,002.13-11,779.78

Finding the Fourth Proportional to 17,378.50, 24,002.13 and 11,779.78

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Solution

The fourth proportional to 17,378.50, 24,002.13 and 11,779.78 is: 16,269.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,378.50 : 24,002.13 = 11,779.78 : x
  2. Step 2: Convert to fraction form
    17,378.50/24,002.13 = 11,779.78/x
  3. Step 3: Cross multiply
    17,378.50x = 24,002.13 × 11,779.78
  4. Step 4: Simplify right side
    17,378.50x = 282,739,810.93
  5. Step 5: Solve for x
    x = 282,739,810.93/17,378.50
  6. Step 6: Final answer
    x = 16,269.52

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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.