Home / 10,321.32-15,483.72-4,772.40

Finding the Fourth Proportional to 10,321.32, 15,483.72 and 4,772.40

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Solution

The fourth proportional to 10,321.32, 15,483.72 and 4,772.40 is: 7,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.32 : 15,483.72 = 4,772.40 : x
  2. Step 2: Convert to fraction form
    10,321.32/15,483.72 = 4,772.40/x
  3. Step 3: Cross multiply
    10,321.32x = 15,483.72 × 4,772.40
  4. Step 4: Simplify right side
    10,321.32x = 73,894,505.33
  5. Step 5: Solve for x
    x = 73,894,505.33/10,321.32
  6. Step 6: Final answer
    x = 7,159.40

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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.