Home / 18,932.10-28,397.12-5,783.45

Finding the Fourth Proportional to 18,932.10, 28,397.12 and 5,783.45

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Solution

The fourth proportional to 18,932.10, 28,397.12 and 5,783.45 is: 8,674.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,932.10 : 28,397.12 = 5,783.45 : x
  2. Step 2: Convert to fraction form
    18,932.10/28,397.12 = 5,783.45/x
  3. Step 3: Cross multiply
    18,932.10x = 28,397.12 × 5,783.45
  4. Step 4: Simplify right side
    18,932.10x = 164,233,152.76
  5. Step 5: Solve for x
    x = 164,233,152.76/18,932.10
  6. Step 6: Final answer
    x = 8,674.85

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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.