Home / 9,109.12-13,663.80-2,535.20

Finding the Fourth Proportional to 9,109.12, 13,663.80 and 2,535.20

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Solution

The fourth proportional to 9,109.12, 13,663.80 and 2,535.20 is: 3,802.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109.12 : 13,663.80 = 2,535.20 : x
  2. Step 2: Convert to fraction form
    9,109.12/13,663.80 = 2,535.20/x
  3. Step 3: Cross multiply
    9,109.12x = 13,663.80 × 2,535.20
  4. Step 4: Simplify right side
    9,109.12x = 34,640,465.76
  5. Step 5: Solve for x
    x = 34,640,465.76/9,109.12
  6. Step 6: Final answer
    x = 3,802.83

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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.