Home / 13,955.76-20,920.68-9,575.28

Finding the Fourth Proportional to 13,955.76, 20,920.68 and 9,575.28

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Solution

The fourth proportional to 13,955.76, 20,920.68 and 9,575.28 is: 14,354.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.76 : 20,920.68 = 9,575.28 : x
  2. Step 2: Convert to fraction form
    13,955.76/20,920.68 = 9,575.28/x
  3. Step 3: Cross multiply
    13,955.76x = 20,920.68 × 9,575.28
  4. Step 4: Simplify right side
    13,955.76x = 200,321,368.79
  5. Step 5: Solve for x
    x = 200,321,368.79/13,955.76
  6. Step 6: Final answer
    x = 14,354.03

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1.5x scale

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.