Home / 10,327.12-15,488.36-2,931.42

Finding the Fourth Proportional to 10,327.12, 15,488.36 and 2,931.42

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Solution

The fourth proportional to 10,327.12, 15,488.36 and 2,931.42 is: 4,396.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,327.12 : 15,488.36 = 2,931.42 : x
  2. Step 2: Convert to fraction form
    10,327.12/15,488.36 = 2,931.42/x
  3. Step 3: Cross multiply
    10,327.12x = 15,488.36 × 2,931.42
  4. Step 4: Simplify right side
    10,327.12x = 45,402,888.27
  5. Step 5: Solve for x
    x = 45,402,888.27/10,327.12
  6. Step 6: Final answer
    x = 4,396.47

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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.