Home / 19,655.10-27,126.20-12,099.92

Finding the Fourth Proportional to 19,655.10, 27,126.20 and 12,099.92

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Solution

The fourth proportional to 19,655.10, 27,126.20 and 12,099.92 is: 16,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,655.10 : 27,126.20 = 12,099.92 : x
  2. Step 2: Convert to fraction form
    19,655.10/27,126.20 = 12,099.92/x
  3. Step 3: Cross multiply
    19,655.10x = 27,126.20 × 12,099.92
  4. Step 4: Simplify right side
    19,655.10x = 328,224,744.52
  5. Step 5: Solve for x
    x = 328,224,744.52/19,655.10
  6. Step 6: Final answer
    x = 16,699.22

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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.