Home / 10,280.64-15,429.60-5,352

Finding the Fourth Proportional to 10,280.64, 15,429.60 and 5,352

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Solution

The fourth proportional to 10,280.64, 15,429.60 and 5,352 is: 8,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,280.64 : 15,429.60 = 5,352 : x
  2. Step 2: Convert to fraction form
    10,280.64/15,429.60 = 5,352/x
  3. Step 3: Cross multiply
    10,280.64x = 15,429.60 × 5,352
  4. Step 4: Simplify right side
    10,280.64x = 82,579,219.20
  5. Step 5: Solve for x
    x = 82,579,219.20/10,280.64
  6. Step 6: Final answer
    x = 8,032.50

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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.