Home / 10,517.32-15,779.64-4,678.04

Finding the Fourth Proportional to 10,517.32, 15,779.64 and 4,678.04

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Solution

The fourth proportional to 10,517.32, 15,779.64 and 4,678.04 is: 7,018.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,517.32 : 15,779.64 = 4,678.04 : x
  2. Step 2: Convert to fraction form
    10,517.32/15,779.64 = 4,678.04/x
  3. Step 3: Cross multiply
    10,517.32x = 15,779.64 × 4,678.04
  4. Step 4: Simplify right side
    10,517.32x = 73,817,787.11
  5. Step 5: Solve for x
    x = 73,817,787.11/10,517.32
  6. Step 6: Final answer
    x = 7,018.69

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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.