Home / 8,942.43-12,345.00-5,587.11

Finding the Fourth Proportional to 8,942.43, 12,345.00 and 5,587.11

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Solution

The fourth proportional to 8,942.43, 12,345.00 and 5,587.11 is: 7,712.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,942.43 : 12,345.00 = 5,587.11 : x
  2. Step 2: Convert to fraction form
    8,942.43/12,345.00 = 5,587.11/x
  3. Step 3: Cross multiply
    8,942.43x = 12,345.00 × 5,587.11
  4. Step 4: Simplify right side
    8,942.43x = 68,972,783.29
  5. Step 5: Solve for x
    x = 68,972,783.29/8,942.43
  6. Step 6: Final answer
    x = 7,712.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.