Home / 13,445.94-20,126.79-8,498.46

Finding the Fourth Proportional to 13,445.94, 20,126.79 and 8,498.46

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Solution

The fourth proportional to 13,445.94, 20,126.79 and 8,498.46 is: 12,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.94 : 20,126.79 = 8,498.46 : x
  2. Step 2: Convert to fraction form
    13,445.94/20,126.79 = 8,498.46/x
  3. Step 3: Cross multiply
    13,445.94x = 20,126.79 × 8,498.46
  4. Step 4: Simplify right side
    13,445.94x = 171,046,719.74
  5. Step 5: Solve for x
    x = 171,046,719.74/13,445.94
  6. Step 6: Final answer
    x = 12,721.07

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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.