Home / 7,019.93-9,687.51-3,876.12

Finding the Fourth Proportional to 7,019.93, 9,687.51 and 3,876.12

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Solution

The fourth proportional to 7,019.93, 9,687.51 and 3,876.12 is: 5,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,019.93 : 9,687.51 = 3,876.12 : x
  2. Step 2: Convert to fraction form
    7,019.93/9,687.51 = 3,876.12/x
  3. Step 3: Cross multiply
    7,019.93x = 9,687.51 × 3,876.12
  4. Step 4: Simplify right side
    7,019.93x = 37,549,951.26
  5. Step 5: Solve for x
    x = 37,549,951.26/7,019.93
  6. Step 6: Final answer
    x = 5,349.05

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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.