Home / 9,071.85-13,603.52-3,147.51

Finding the Fourth Proportional to 9,071.85, 13,603.52 and 3,147.51

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Solution

The fourth proportional to 9,071.85, 13,603.52 and 3,147.51 is: 4,719.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,071.85 : 13,603.52 = 3,147.51 : x
  2. Step 2: Convert to fraction form
    9,071.85/13,603.52 = 3,147.51/x
  3. Step 3: Cross multiply
    9,071.85x = 13,603.52 × 3,147.51
  4. Step 4: Simplify right side
    9,071.85x = 42,817,131.48
  5. Step 5: Solve for x
    x = 42,817,131.48/9,071.85
  6. Step 6: Final answer
    x = 4,719.78

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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.