Home / 11,867.49-16,377.17-7,152.68

Finding the Fourth Proportional to 11,867.49, 16,377.17 and 7,152.68

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Solution

The fourth proportional to 11,867.49, 16,377.17 and 7,152.68 is: 9,870.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,867.49 : 16,377.17 = 7,152.68 : x
  2. Step 2: Convert to fraction form
    11,867.49/16,377.17 = 7,152.68/x
  3. Step 3: Cross multiply
    11,867.49x = 16,377.17 × 7,152.68
  4. Step 4: Simplify right side
    11,867.49x = 117,140,661.50
  5. Step 5: Solve for x
    x = 117,140,661.50/11,867.49
  6. Step 6: Final answer
    x = 9,870.72

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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.