Home / 10,079.64-15,102.45-7,143.39

Finding the Fourth Proportional to 10,079.64, 15,102.45 and 7,143.39

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Solution

The fourth proportional to 10,079.64, 15,102.45 and 7,143.39 is: 10,703.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,079.64 : 15,102.45 = 7,143.39 : x
  2. Step 2: Convert to fraction form
    10,079.64/15,102.45 = 7,143.39/x
  3. Step 3: Cross multiply
    10,079.64x = 15,102.45 × 7,143.39
  4. Step 4: Simplify right side
    10,079.64x = 107,882,690.31
  5. Step 5: Solve for x
    x = 107,882,690.31/10,079.64
  6. Step 6: Final answer
    x = 10,703.03

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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.