Home / 18,197.40-25,112.88-10,642.50

Finding the Fourth Proportional to 18,197.40, 25,112.88 and 10,642.50

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Solution

The fourth proportional to 18,197.40, 25,112.88 and 10,642.50 is: 14,686.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,197.40 : 25,112.88 = 10,642.50 : x
  2. Step 2: Convert to fraction form
    18,197.40/25,112.88 = 10,642.50/x
  3. Step 3: Cross multiply
    18,197.40x = 25,112.88 × 10,642.50
  4. Step 4: Simplify right side
    18,197.40x = 267,263,825.40
  5. Step 5: Solve for x
    x = 267,263,825.40/18,197.40
  6. Step 6: Final answer
    x = 14,686.92

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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.