Home / 19,318.20-26,660.74-10,820.16

Finding the Fourth Proportional to 19,318.20, 26,660.74 and 10,820.16

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Solution

The fourth proportional to 19,318.20, 26,660.74 and 10,820.16 is: 14,932.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,318.20 : 26,660.74 = 10,820.16 : x
  2. Step 2: Convert to fraction form
    19,318.20/26,660.74 = 10,820.16/x
  3. Step 3: Cross multiply
    19,318.20x = 26,660.74 × 10,820.16
  4. Step 4: Simplify right side
    19,318.20x = 288,473,545.45
  5. Step 5: Solve for x
    x = 288,473,545.45/19,318.20
  6. Step 6: Final answer
    x = 14,932.74

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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.