Home / 18,776.22-28,158.57-12,970.14

Finding the Fourth Proportional to 18,776.22, 28,158.57 and 12,970.14

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Solution

The fourth proportional to 18,776.22, 28,158.57 and 12,970.14 is: 19,451.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,776.22 : 28,158.57 = 12,970.14 : x
  2. Step 2: Convert to fraction form
    18,776.22/28,158.57 = 12,970.14/x
  3. Step 3: Cross multiply
    18,776.22x = 28,158.57 × 12,970.14
  4. Step 4: Simplify right side
    18,776.22x = 365,220,595.10
  5. Step 5: Solve for x
    x = 365,220,595.10/18,776.22
  6. Step 6: Final answer
    x = 19,451.23

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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.