Home / 12,343.19-18,419.86-11,030.99

Finding the Fourth Proportional to 12,343.19, 18,419.86 and 11,030.99

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Solution

The fourth proportional to 12,343.19, 18,419.86 and 11,030.99 is: 16,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,343.19 : 18,419.86 = 11,030.99 : x
  2. Step 2: Convert to fraction form
    12,343.19/18,419.86 = 11,030.99/x
  3. Step 3: Cross multiply
    12,343.19x = 18,419.86 × 11,030.99
  4. Step 4: Simplify right side
    12,343.19x = 203,189,213.15
  5. Step 5: Solve for x
    x = 203,189,213.15/12,343.19
  6. Step 6: Final answer
    x = 16,461.65

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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.