Home / 8,062.81-11,130.42-5,378.49

Finding the Fourth Proportional to 8,062.81, 11,130.42 and 5,378.49

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Solution

The fourth proportional to 8,062.81, 11,130.42 and 5,378.49 is: 7,424.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,062.81 : 11,130.42 = 5,378.49 : x
  2. Step 2: Convert to fraction form
    8,062.81/11,130.42 = 5,378.49/x
  3. Step 3: Cross multiply
    8,062.81x = 11,130.42 × 5,378.49
  4. Step 4: Simplify right side
    8,062.81x = 59,864,872.84
  5. Step 5: Solve for x
    x = 59,864,872.84/8,062.81
  6. Step 6: Final answer
    x = 7,424.82

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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.