Home / 19,874.50-27,427.53-11,378.14

Finding the Fourth Proportional to 19,874.50, 27,427.53 and 11,378.14

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Solution

The fourth proportional to 19,874.50, 27,427.53 and 11,378.14 is: 15,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,874.50 : 27,427.53 = 11,378.14 : x
  2. Step 2: Convert to fraction form
    19,874.50/27,427.53 = 11,378.14/x
  3. Step 3: Cross multiply
    19,874.50x = 27,427.53 × 11,378.14
  4. Step 4: Simplify right side
    19,874.50x = 312,074,276.19
  5. Step 5: Solve for x
    x = 312,074,276.19/19,874.50
  6. Step 6: Final answer
    x = 15,702.25

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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.