Home / 10,468.32-15,702.48-5,278.56

Finding the Fourth Proportional to 10,468.32, 15,702.48 and 5,278.56

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Solution

The fourth proportional to 10,468.32, 15,702.48 and 5,278.56 is: 7,917.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,468.32 : 15,702.48 = 5,278.56 : x
  2. Step 2: Convert to fraction form
    10,468.32/15,702.48 = 5,278.56/x
  3. Step 3: Cross multiply
    10,468.32x = 15,702.48 × 5,278.56
  4. Step 4: Simplify right side
    10,468.32x = 82,886,482.83
  5. Step 5: Solve for x
    x = 82,886,482.83/10,468.32
  6. Step 6: Final answer
    x = 7,917.84

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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.