Home / 19,340.78-26,675.07-12,965.18

Finding the Fourth Proportional to 19,340.78, 26,675.07 and 12,965.18

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Solution

The fourth proportional to 19,340.78, 26,675.07 and 12,965.18 is: 17,881.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,340.78 : 26,675.07 = 12,965.18 : x
  2. Step 2: Convert to fraction form
    19,340.78/26,675.07 = 12,965.18/x
  3. Step 3: Cross multiply
    19,340.78x = 26,675.07 × 12,965.18
  4. Step 4: Simplify right side
    19,340.78x = 345,847,084.06
  5. Step 5: Solve for x
    x = 345,847,084.06/19,340.78
  6. Step 6: Final answer
    x = 17,881.75

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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.