Home / 10,122.66-13,968.60-6,345.66

Finding the Fourth Proportional to 10,122.66, 13,968.60 and 6,345.66

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Solution

The fourth proportional to 10,122.66, 13,968.60 and 6,345.66 is: 8,756.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.66 : 13,968.60 = 6,345.66 : x
  2. Step 2: Convert to fraction form
    10,122.66/13,968.60 = 6,345.66/x
  3. Step 3: Cross multiply
    10,122.66x = 13,968.60 × 6,345.66
  4. Step 4: Simplify right side
    10,122.66x = 88,639,986.28
  5. Step 5: Solve for x
    x = 88,639,986.28/10,122.66
  6. Step 6: Final answer
    x = 8,756.59

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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.