Home / 13,152.82-18,138.84-10,281.92

Finding the Fourth Proportional to 13,152.82, 18,138.84 and 10,281.92

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Solution

The fourth proportional to 13,152.82, 18,138.84 and 10,281.92 is: 14,179.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,152.82 : 18,138.84 = 10,281.92 : x
  2. Step 2: Convert to fraction form
    13,152.82/18,138.84 = 10,281.92/x
  3. Step 3: Cross multiply
    13,152.82x = 18,138.84 × 10,281.92
  4. Step 4: Simplify right side
    13,152.82x = 186,502,101.77
  5. Step 5: Solve for x
    x = 186,502,101.77/13,152.82
  6. Step 6: Final answer
    x = 14,179.63

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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.