Home / 8,719.47-12,032.60-4,942.98

Finding the Fourth Proportional to 8,719.47, 12,032.60 and 4,942.98

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Solution

The fourth proportional to 8,719.47, 12,032.60 and 4,942.98 is: 6,821.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.47 : 12,032.60 = 4,942.98 : x
  2. Step 2: Convert to fraction form
    8,719.47/12,032.60 = 4,942.98/x
  3. Step 3: Cross multiply
    8,719.47x = 12,032.60 × 4,942.98
  4. Step 4: Simplify right side
    8,719.47x = 59,476,901.15
  5. Step 5: Solve for x
    x = 59,476,901.15/8,719.47
  6. Step 6: Final answer
    x = 6,821.16

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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.