Home / 18,414.90-25,411.36-10,859.50

Finding the Fourth Proportional to 18,414.90, 25,411.36 and 10,859.50

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Solution

The fourth proportional to 18,414.90, 25,411.36 and 10,859.50 is: 14,985.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,414.90 : 25,411.36 = 10,859.50 : x
  2. Step 2: Convert to fraction form
    18,414.90/25,411.36 = 10,859.50/x
  3. Step 3: Cross multiply
    18,414.90x = 25,411.36 × 10,859.50
  4. Step 4: Simplify right side
    18,414.90x = 275,954,482.57
  5. Step 5: Solve for x
    x = 275,954,482.57/18,414.90
  6. Step 6: Final answer
    x = 14,985.40

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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.