Home / 10,122.67-13,969.34-5,646.70

Finding the Fourth Proportional to 10,122.67, 13,969.34 and 5,646.70

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Solution

The fourth proportional to 10,122.67, 13,969.34 and 5,646.70 is: 7,792.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.67 : 13,969.34 = 5,646.70 : x
  2. Step 2: Convert to fraction form
    10,122.67/13,969.34 = 5,646.70/x
  3. Step 3: Cross multiply
    10,122.67x = 13,969.34 × 5,646.70
  4. Step 4: Simplify right side
    10,122.67x = 78,880,672.18
  5. Step 5: Solve for x
    x = 78,880,672.18/10,122.67
  6. Step 6: Final answer
    x = 7,792.48

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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.