Home / 18,421.43-25,422.18-10,356.50

Finding the Fourth Proportional to 18,421.43, 25,422.18 and 10,356.50

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Solution

The fourth proportional to 18,421.43, 25,422.18 and 10,356.50 is: 14,292.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.43 : 25,422.18 = 10,356.50 : x
  2. Step 2: Convert to fraction form
    18,421.43/25,422.18 = 10,356.50/x
  3. Step 3: Cross multiply
    18,421.43x = 25,422.18 × 10,356.50
  4. Step 4: Simplify right side
    18,421.43x = 263,284,680.06
  5. Step 5: Solve for x
    x = 263,284,680.06/18,421.43
  6. Step 6: Final answer
    x = 14,292.31

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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.