Home / 18,977.32-28,456.85-8,973.73

Finding the Fourth Proportional to 18,977.32, 28,456.85 and 8,973.73

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Solution

The fourth proportional to 18,977.32, 28,456.85 and 8,973.73 is: 13,456.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.32 : 28,456.85 = 8,973.73 : x
  2. Step 2: Convert to fraction form
    18,977.32/28,456.85 = 8,973.73/x
  3. Step 3: Cross multiply
    18,977.32x = 28,456.85 × 8,973.73
  4. Step 4: Simplify right side
    18,977.32x = 255,364,088.55
  5. Step 5: Solve for x
    x = 255,364,088.55/18,977.32
  6. Step 6: Final answer
    x = 13,456.28

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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.