Home / 18,677.40-28,016.10-8,835.90

Finding the Fourth Proportional to 18,677.40, 28,016.10 and 8,835.90

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Solution

The fourth proportional to 18,677.40, 28,016.10 and 8,835.90 is: 13,253.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677.40 : 28,016.10 = 8,835.90 : x
  2. Step 2: Convert to fraction form
    18,677.40/28,016.10 = 8,835.90/x
  3. Step 3: Cross multiply
    18,677.40x = 28,016.10 × 8,835.90
  4. Step 4: Simplify right side
    18,677.40x = 247,547,457.99
  5. Step 5: Solve for x
    x = 247,547,457.99/18,677.40
  6. Step 6: Final answer
    x = 13,253.85

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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.