Home / 8,869.13-12,238.46-4,890.01

Finding the Fourth Proportional to 8,869.13, 12,238.46 and 4,890.01

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Solution

The fourth proportional to 8,869.13, 12,238.46 and 4,890.01 is: 6,747.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,869.13 : 12,238.46 = 4,890.01 : x
  2. Step 2: Convert to fraction form
    8,869.13/12,238.46 = 4,890.01/x
  3. Step 3: Cross multiply
    8,869.13x = 12,238.46 × 4,890.01
  4. Step 4: Simplify right side
    8,869.13x = 59,846,130.59
  5. Step 5: Solve for x
    x = 59,846,130.59/8,869.13
  6. Step 6: Final answer
    x = 6,747.69

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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.