Home / 12,344.19-18,421.35-11,031.99

Finding the Fourth Proportional to 12,344.19, 18,421.35 and 11,031.99

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Solution

The fourth proportional to 12,344.19, 18,421.35 and 11,031.99 is: 16,463.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,344.19 : 18,421.35 = 11,031.99 : x
  2. Step 2: Convert to fraction form
    12,344.19/18,421.35 = 11,031.99/x
  3. Step 3: Cross multiply
    12,344.19x = 18,421.35 × 11,031.99
  4. Step 4: Simplify right side
    12,344.19x = 203,224,148.99
  5. Step 5: Solve for x
    x = 203,224,148.99/12,344.19
  6. Step 6: Final answer
    x = 16,463.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.