Home / 8,890.29-12,254.42-6,998.87

Finding the Fourth Proportional to 8,890.29, 12,254.42 and 6,998.87

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Solution

The fourth proportional to 8,890.29, 12,254.42 and 6,998.87 is: 9,647.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,890.29 : 12,254.42 = 6,998.87 : x
  2. Step 2: Convert to fraction form
    8,890.29/12,254.42 = 6,998.87/x
  3. Step 3: Cross multiply
    8,890.29x = 12,254.42 × 6,998.87
  4. Step 4: Simplify right side
    8,890.29x = 85,767,140.64
  5. Step 5: Solve for x
    x = 85,767,140.64/8,890.29
  6. Step 6: Final answer
    x = 9,647.28

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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.