Home / 10,326.40-15,490.19-2,930.28

Finding the Fourth Proportional to 10,326.40, 15,490.19 and 2,930.28

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Solution

The fourth proportional to 10,326.40, 15,490.19 and 2,930.28 is: 4,395.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,326.40 : 15,490.19 = 2,930.28 : x
  2. Step 2: Convert to fraction form
    10,326.40/15,490.19 = 2,930.28/x
  3. Step 3: Cross multiply
    10,326.40x = 15,490.19 × 2,930.28
  4. Step 4: Simplify right side
    10,326.40x = 45,390,593.95
  5. Step 5: Solve for x
    x = 45,390,593.95/10,326.40
  6. Step 6: Final answer
    x = 4,395.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.