Home / 8,715.18-13,070.32-6,242.64

Finding the Fourth Proportional to 8,715.18, 13,070.32 and 6,242.64

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Solution

The fourth proportional to 8,715.18, 13,070.32 and 6,242.64 is: 9,362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,715.18 : 13,070.32 = 6,242.64 : x
  2. Step 2: Convert to fraction form
    8,715.18/13,070.32 = 6,242.64/x
  3. Step 3: Cross multiply
    8,715.18x = 13,070.32 × 6,242.64
  4. Step 4: Simplify right side
    8,715.18x = 81,593,302.44
  5. Step 5: Solve for x
    x = 81,593,302.44/8,715.18
  6. Step 6: Final answer
    x = 9,362.21

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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.