Home / 11,712.28-16,158.40-7,462.58

Finding the Fourth Proportional to 11,712.28, 16,158.40 and 7,462.58

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Solution

The fourth proportional to 11,712.28, 16,158.40 and 7,462.58 is: 10,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,712.28 : 16,158.40 = 7,462.58 : x
  2. Step 2: Convert to fraction form
    11,712.28/16,158.40 = 7,462.58/x
  3. Step 3: Cross multiply
    11,712.28x = 16,158.40 × 7,462.58
  4. Step 4: Simplify right side
    11,712.28x = 120,583,352.67
  5. Step 5: Solve for x
    x = 120,583,352.67/11,712.28
  6. Step 6: Final answer
    x = 10,295.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.