Home / 8,370.40-11,551.52-5,013.76

Finding the Fourth Proportional to 8,370.40, 11,551.52 and 5,013.76

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Solution

The fourth proportional to 8,370.40, 11,551.52 and 5,013.76 is: 6,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.40 : 11,551.52 = 5,013.76 : x
  2. Step 2: Convert to fraction form
    8,370.40/11,551.52 = 5,013.76/x
  3. Step 3: Cross multiply
    8,370.40x = 11,551.52 × 5,013.76
  4. Step 4: Simplify right side
    8,370.40x = 57,916,548.92
  5. Step 5: Solve for x
    x = 57,916,548.92/8,370.40
  6. Step 6: Final answer
    x = 6,919.21

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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.