Home / 13,631.49-18,820.76-10,046.88

Finding the Fourth Proportional to 13,631.49, 18,820.76 and 10,046.88

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Solution

The fourth proportional to 13,631.49, 18,820.76 and 10,046.88 is: 13,871.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.49 : 18,820.76 = 10,046.88 : x
  2. Step 2: Convert to fraction form
    13,631.49/18,820.76 = 10,046.88/x
  3. Step 3: Cross multiply
    13,631.49x = 18,820.76 × 10,046.88
  4. Step 4: Simplify right side
    13,631.49x = 189,089,848.24
  5. Step 5: Solve for x
    x = 189,089,848.24/13,631.49
  6. Step 6: Final answer
    x = 13,871.55

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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.