Home / 12,952.19-19,430.10-6,378.44

Finding the Fourth Proportional to 12,952.19, 19,430.10 and 6,378.44

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Solution

The fourth proportional to 12,952.19, 19,430.10 and 6,378.44 is: 9,568.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,952.19 : 19,430.10 = 6,378.44 : x
  2. Step 2: Convert to fraction form
    12,952.19/19,430.10 = 6,378.44/x
  3. Step 3: Cross multiply
    12,952.19x = 19,430.10 × 6,378.44
  4. Step 4: Simplify right side
    12,952.19x = 123,933,629.89
  5. Step 5: Solve for x
    x = 123,933,629.89/12,952.19
  6. Step 6: Final answer
    x = 9,568.55

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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.