Home / 15,256.91-21,054.54-8,542.55

Finding the Fourth Proportional to 15,256.91, 21,054.54 and 8,542.55

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Solution

The fourth proportional to 15,256.91, 21,054.54 and 8,542.55 is: 11,788.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,256.91 : 21,054.54 = 8,542.55 : x
  2. Step 2: Convert to fraction form
    15,256.91/21,054.54 = 8,542.55/x
  3. Step 3: Cross multiply
    15,256.91x = 21,054.54 × 8,542.55
  4. Step 4: Simplify right side
    15,256.91x = 179,859,355.40
  5. Step 5: Solve for x
    x = 179,859,355.40/15,256.91
  6. Step 6: Final answer
    x = 11,788.72

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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.