Home / 15,079.26-20,804.40-9,108.66

Finding the Fourth Proportional to 15,079.26, 20,804.40 and 9,108.66

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Solution

The fourth proportional to 15,079.26, 20,804.40 and 9,108.66 is: 12,566.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,079.26 : 20,804.40 = 9,108.66 : x
  2. Step 2: Convert to fraction form
    15,079.26/20,804.40 = 9,108.66/x
  3. Step 3: Cross multiply
    15,079.26x = 20,804.40 × 9,108.66
  4. Step 4: Simplify right side
    15,079.26x = 189,500,206.10
  5. Step 5: Solve for x
    x = 189,500,206.10/15,079.26
  6. Step 6: Final answer
    x = 12,566.94

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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.