Home / 14,867.81-20,538.92-11,879.72

Finding the Fourth Proportional to 14,867.81, 20,538.92 and 11,879.72

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Solution

The fourth proportional to 14,867.81, 20,538.92 and 11,879.72 is: 16,411.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,867.81 : 20,538.92 = 11,879.72 : x
  2. Step 2: Convert to fraction form
    14,867.81/20,538.92 = 11,879.72/x
  3. Step 3: Cross multiply
    14,867.81x = 20,538.92 × 11,879.72
  4. Step 4: Simplify right side
    14,867.81x = 243,996,545.71
  5. Step 5: Solve for x
    x = 243,996,545.71/14,867.81
  6. Step 6: Final answer
    x = 16,411.07

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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.