Home / 10,185.76-15,278.64-6,291.52

Finding the Fourth Proportional to 10,185.76, 15,278.64 and 6,291.52

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Solution

The fourth proportional to 10,185.76, 15,278.64 and 6,291.52 is: 9,437.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,185.76 : 15,278.64 = 6,291.52 : x
  2. Step 2: Convert to fraction form
    10,185.76/15,278.64 = 6,291.52/x
  3. Step 3: Cross multiply
    10,185.76x = 15,278.64 × 6,291.52
  4. Step 4: Simplify right side
    10,185.76x = 96,125,869.13
  5. Step 5: Solve for x
    x = 96,125,869.13/10,185.76
  6. Step 6: Final answer
    x = 9,437.28

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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.