Home / 10,242.45-15,368.94-8,864.64

Finding the Fourth Proportional to 10,242.45, 15,368.94 and 8,864.64

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Solution

The fourth proportional to 10,242.45, 15,368.94 and 8,864.64 is: 13,301.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,242.45 : 15,368.94 = 8,864.64 : x
  2. Step 2: Convert to fraction form
    10,242.45/15,368.94 = 8,864.64/x
  3. Step 3: Cross multiply
    10,242.45x = 15,368.94 × 8,864.64
  4. Step 4: Simplify right side
    10,242.45x = 136,240,120.28
  5. Step 5: Solve for x
    x = 136,240,120.28/10,242.45
  6. Step 6: Final answer
    x = 13,301.52

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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.