Home / 7,503.80-11,253.26-3,120.08

Finding the Fourth Proportional to 7,503.80, 11,253.26 and 3,120.08

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Solution

The fourth proportional to 7,503.80, 11,253.26 and 3,120.08 is: 4,679.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,503.80 : 11,253.26 = 3,120.08 : x
  2. Step 2: Convert to fraction form
    7,503.80/11,253.26 = 3,120.08/x
  3. Step 3: Cross multiply
    7,503.80x = 11,253.26 × 3,120.08
  4. Step 4: Simplify right side
    7,503.80x = 35,111,071.46
  5. Step 5: Solve for x
    x = 35,111,071.46/7,503.80
  6. Step 6: Final answer
    x = 4,679.11

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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.