Home / 15,040.87-20,756.14-8,326.35

Finding the Fourth Proportional to 15,040.87, 20,756.14 and 8,326.35

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Solution

The fourth proportional to 15,040.87, 20,756.14 and 8,326.35 is: 11,490.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,040.87 : 20,756.14 = 8,326.35 : x
  2. Step 2: Convert to fraction form
    15,040.87/20,756.14 = 8,326.35/x
  3. Step 3: Cross multiply
    15,040.87x = 20,756.14 × 8,326.35
  4. Step 4: Simplify right side
    15,040.87x = 172,822,886.29
  5. Step 5: Solve for x
    x = 172,822,886.29/15,040.87
  6. Step 6: Final answer
    x = 11,490.22

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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.