Home / 8,218.40-11,337.90-5,030.49

Finding the Fourth Proportional to 8,218.40, 11,337.90 and 5,030.49

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Solution

The fourth proportional to 8,218.40, 11,337.90 and 5,030.49 is: 6,939.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,218.40 : 11,337.90 = 5,030.49 : x
  2. Step 2: Convert to fraction form
    8,218.40/11,337.90 = 5,030.49/x
  3. Step 3: Cross multiply
    8,218.40x = 11,337.90 × 5,030.49
  4. Step 4: Simplify right side
    8,218.40x = 57,035,192.57
  5. Step 5: Solve for x
    x = 57,035,192.57/8,218.40
  6. Step 6: Final answer
    x = 6,939.94

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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.