Home / 10,120.67-13,968.34-6,347.10

Finding the Fourth Proportional to 10,120.67, 13,968.34 and 6,347.10

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Solution

The fourth proportional to 10,120.67, 13,968.34 and 6,347.10 is: 8,760.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.67 : 13,968.34 = 6,347.10 : x
  2. Step 2: Convert to fraction form
    10,120.67/13,968.34 = 6,347.10/x
  3. Step 3: Cross multiply
    10,120.67x = 13,968.34 × 6,347.10
  4. Step 4: Simplify right side
    10,120.67x = 88,658,434.95
  5. Step 5: Solve for x
    x = 88,658,434.95/10,120.67
  6. Step 6: Final answer
    x = 8,760.13

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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.