Home / 7,146.12-9,871.02-5,261.52

Finding the Fourth Proportional to 7,146.12, 9,871.02 and 5,261.52

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Solution

The fourth proportional to 7,146.12, 9,871.02 and 5,261.52 is: 7,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.12 : 9,871.02 = 5,261.52 : x
  2. Step 2: Convert to fraction form
    7,146.12/9,871.02 = 5,261.52/x
  3. Step 3: Cross multiply
    7,146.12x = 9,871.02 × 5,261.52
  4. Step 4: Simplify right side
    7,146.12x = 51,936,569.15
  5. Step 5: Solve for x
    x = 51,936,569.15/7,146.12
  6. Step 6: Final answer
    x = 7,267.80

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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.