Home / 15,176.40-20,943.56-8,462.80

Finding the Fourth Proportional to 15,176.40, 20,943.56 and 8,462.80

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Solution

The fourth proportional to 15,176.40, 20,943.56 and 8,462.80 is: 11,678.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,176.40 : 20,943.56 = 8,462.80 : x
  2. Step 2: Convert to fraction form
    15,176.40/20,943.56 = 8,462.80/x
  3. Step 3: Cross multiply
    15,176.40x = 20,943.56 × 8,462.80
  4. Step 4: Simplify right side
    15,176.40x = 177,241,159.57
  5. Step 5: Solve for x
    x = 177,241,159.57/15,176.40
  6. Step 6: Final answer
    x = 11,678.74

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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.