Home / 18,976.32-28,426.36-9,459.94

Finding the Fourth Proportional to 18,976.32, 28,426.36 and 9,459.94

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Solution

The fourth proportional to 18,976.32, 28,426.36 and 9,459.94 is: 14,170.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,976.32 : 28,426.36 = 9,459.94 : x
  2. Step 2: Convert to fraction form
    18,976.32/28,426.36 = 9,459.94/x
  3. Step 3: Cross multiply
    18,976.32x = 28,426.36 × 9,459.94
  4. Step 4: Simplify right side
    18,976.32x = 268,911,660.02
  5. Step 5: Solve for x
    x = 268,911,660.02/18,976.32
  6. Step 6: Final answer
    x = 14,170.91

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1.5x scale

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.