Home / 18,722.80-28,088.10-6,246.70

Finding the Fourth Proportional to 18,722.80, 28,088.10 and 6,246.70

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Solution

The fourth proportional to 18,722.80, 28,088.10 and 6,246.70 is: 9,371.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,722.80 : 28,088.10 = 6,246.70 : x
  2. Step 2: Convert to fraction form
    18,722.80/28,088.10 = 6,246.70/x
  3. Step 3: Cross multiply
    18,722.80x = 28,088.10 × 6,246.70
  4. Step 4: Simplify right side
    18,722.80x = 175,457,934.27
  5. Step 5: Solve for x
    x = 175,457,934.27/18,722.80
  6. Step 6: Final answer
    x = 9,371.35

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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.