Home / 13,298.40-19,934.80-10,335.20

Finding the Fourth Proportional to 13,298.40, 19,934.80 and 10,335.20

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Solution

The fourth proportional to 13,298.40, 19,934.80 and 10,335.20 is: 15,492.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.40 : 19,934.80 = 10,335.20 : x
  2. Step 2: Convert to fraction form
    13,298.40/19,934.80 = 10,335.20/x
  3. Step 3: Cross multiply
    13,298.40x = 19,934.80 × 10,335.20
  4. Step 4: Simplify right side
    13,298.40x = 206,030,144.96
  5. Step 5: Solve for x
    x = 206,030,144.96/13,298.40
  6. Step 6: Final answer
    x = 15,492.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.