Home / 15,152.28-20,907.66-8,437.74

Finding the Fourth Proportional to 15,152.28, 20,907.66 and 8,437.74

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Solution

The fourth proportional to 15,152.28, 20,907.66 and 8,437.74 is: 11,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,152.28 : 20,907.66 = 8,437.74 : x
  2. Step 2: Convert to fraction form
    15,152.28/20,907.66 = 8,437.74/x
  3. Step 3: Cross multiply
    15,152.28x = 20,907.66 × 8,437.74
  4. Step 4: Simplify right side
    15,152.28x = 176,413,399.09
  5. Step 5: Solve for x
    x = 176,413,399.09/15,152.28
  6. Step 6: Final answer
    x = 11,642.70

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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.