Home / 18,864.12-28,295.37-5,715.93

Finding the Fourth Proportional to 18,864.12, 28,295.37 and 5,715.93

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Solution

The fourth proportional to 18,864.12, 28,295.37 and 5,715.93 is: 8,573.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.12 : 28,295.37 = 5,715.93 : x
  2. Step 2: Convert to fraction form
    18,864.12/28,295.37 = 5,715.93/x
  3. Step 3: Cross multiply
    18,864.12x = 28,295.37 × 5,715.93
  4. Step 4: Simplify right side
    18,864.12x = 161,734,354.24
  5. Step 5: Solve for x
    x = 161,734,354.24/18,864.12
  6. Step 6: Final answer
    x = 8,573.65

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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.