Home / 18,720.09-25,833.74-10,336.59

Finding the Fourth Proportional to 18,720.09, 25,833.74 and 10,336.59

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Solution

The fourth proportional to 18,720.09, 25,833.74 and 10,336.59 is: 14,264.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720.09 : 25,833.74 = 10,336.59 : x
  2. Step 2: Convert to fraction form
    18,720.09/25,833.74 = 10,336.59/x
  3. Step 3: Cross multiply
    18,720.09x = 25,833.74 × 10,336.59
  4. Step 4: Simplify right side
    18,720.09x = 267,032,726.86
  5. Step 5: Solve for x
    x = 267,032,726.86/18,720.09
  6. Step 6: Final answer
    x = 14,264.50

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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.