Home / 7,943.12-11,913.02-3,258.55

Finding the Fourth Proportional to 7,943.12, 11,913.02 and 3,258.55

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Solution

The fourth proportional to 7,943.12, 11,913.02 and 3,258.55 is: 4,887.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.12 : 11,913.02 = 3,258.55 : x
  2. Step 2: Convert to fraction form
    7,943.12/11,913.02 = 3,258.55/x
  3. Step 3: Cross multiply
    7,943.12x = 11,913.02 × 3,258.55
  4. Step 4: Simplify right side
    7,943.12x = 38,819,171.32
  5. Step 5: Solve for x
    x = 38,819,171.32/7,943.12
  6. Step 6: Final answer
    x = 4,887.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.