Home / 10,342.02-15,492.20-4,787.70

Finding the Fourth Proportional to 10,342.02, 15,492.20 and 4,787.70

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Solution

The fourth proportional to 10,342.02, 15,492.20 and 4,787.70 is: 7,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,342.02 : 15,492.20 = 4,787.70 : x
  2. Step 2: Convert to fraction form
    10,342.02/15,492.20 = 4,787.70/x
  3. Step 3: Cross multiply
    10,342.02x = 15,492.20 × 4,787.70
  4. Step 4: Simplify right side
    10,342.02x = 74,172,005.94
  5. Step 5: Solve for x
    x = 74,172,005.94/10,342.02
  6. Step 6: Final answer
    x = 7,171.91

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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.