Home / 13,335.40-18,400.26-9,350.20

Finding the Fourth Proportional to 13,335.40, 18,400.26 and 9,350.20

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Solution

The fourth proportional to 13,335.40, 18,400.26 and 9,350.20 is: 12,901.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.40 : 18,400.26 = 9,350.20 : x
  2. Step 2: Convert to fraction form
    13,335.40/18,400.26 = 9,350.20/x
  3. Step 3: Cross multiply
    13,335.40x = 18,400.26 × 9,350.20
  4. Step 4: Simplify right side
    13,335.40x = 172,046,111.05
  5. Step 5: Solve for x
    x = 172,046,111.05/13,335.40
  6. Step 6: Final answer
    x = 12,901.46

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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.