Home / 13,820.20-19,071.85-7,532.59

Finding the Fourth Proportional to 13,820.20, 19,071.85 and 7,532.59

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Solution

The fourth proportional to 13,820.20, 19,071.85 and 7,532.59 is: 10,394.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,820.20 : 19,071.85 = 7,532.59 : x
  2. Step 2: Convert to fraction form
    13,820.20/19,071.85 = 7,532.59/x
  3. Step 3: Cross multiply
    13,820.20x = 19,071.85 × 7,532.59
  4. Step 4: Simplify right side
    13,820.20x = 143,660,426.59
  5. Step 5: Solve for x
    x = 143,660,426.59/13,820.20
  6. Step 6: Final answer
    x = 10,394.96

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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.