Home / 18,733.67-28,108.20-8,870.30

Finding the Fourth Proportional to 18,733.67, 28,108.20 and 8,870.30

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Solution

The fourth proportional to 18,733.67, 28,108.20 and 8,870.30 is: 13,309.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,733.67 : 28,108.20 = 8,870.30 : x
  2. Step 2: Convert to fraction form
    18,733.67/28,108.20 = 8,870.30/x
  3. Step 3: Cross multiply
    18,733.67x = 28,108.20 × 8,870.30
  4. Step 4: Simplify right side
    18,733.67x = 249,328,166.46
  5. Step 5: Solve for x
    x = 249,328,166.46/18,733.67
  6. Step 6: Final answer
    x = 13,309.09

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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.