Home / 18,720.18-25,833.69-10,336.50

Finding the Fourth Proportional to 18,720.18, 25,833.69 and 10,336.50

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Solution

The fourth proportional to 18,720.18, 25,833.69 and 10,336.50 is: 14,264.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.18 : 25,833.69 = 10,336.50 : x
  2. Step 2: Convert to fraction form
    18,720.18/25,833.69 = 10,336.50/x
  3. Step 3: Cross multiply
    18,720.18x = 25,833.69 × 10,336.50
  4. Step 4: Simplify right side
    18,720.18x = 267,029,936.69
  5. Step 5: Solve for x
    x = 267,029,936.69/18,720.18
  6. Step 6: Final answer
    x = 14,264.28

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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.