Home / 8,013.48-12,013.86-5,257.32

Finding the Fourth Proportional to 8,013.48, 12,013.86 and 5,257.32

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Solution

The fourth proportional to 8,013.48, 12,013.86 and 5,257.32 is: 7,881.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,013.48 : 12,013.86 = 5,257.32 : x
  2. Step 2: Convert to fraction form
    8,013.48/12,013.86 = 5,257.32/x
  3. Step 3: Cross multiply
    8,013.48x = 12,013.86 × 5,257.32
  4. Step 4: Simplify right side
    8,013.48x = 63,160,706.46
  5. Step 5: Solve for x
    x = 63,160,706.46/8,013.48
  6. Step 6: Final answer
    x = 7,881.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.