Home / 8,706.48-12,013.44-5,121.60

Finding the Fourth Proportional to 8,706.48, 12,013.44 and 5,121.60

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Solution

The fourth proportional to 8,706.48, 12,013.44 and 5,121.60 is: 7,066.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,706.48 : 12,013.44 = 5,121.60 : x
  2. Step 2: Convert to fraction form
    8,706.48/12,013.44 = 5,121.60/x
  3. Step 3: Cross multiply
    8,706.48x = 12,013.44 × 5,121.60
  4. Step 4: Simplify right side
    8,706.48x = 61,528,034.30
  5. Step 5: Solve for x
    x = 61,528,034.30/8,706.48
  6. Step 6: Final answer
    x = 7,066.92

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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.