Home / 19,886.18-27,436.85-13,078.26

Finding the Fourth Proportional to 19,886.18, 27,436.85 and 13,078.26

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Solution

The fourth proportional to 19,886.18, 27,436.85 and 13,078.26 is: 18,044.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,886.18 : 27,436.85 = 13,078.26 : x
  2. Step 2: Convert to fraction form
    19,886.18/27,436.85 = 13,078.26/x
  3. Step 3: Cross multiply
    19,886.18x = 27,436.85 × 13,078.26
  4. Step 4: Simplify right side
    19,886.18x = 358,826,319.70
  5. Step 5: Solve for x
    x = 358,826,319.70/19,886.18
  6. Step 6: Final answer
    x = 18,044.00

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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.