Home / 19,919.67-27,498.60-12,655.46

Finding the Fourth Proportional to 19,919.67, 27,498.60 and 12,655.46

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Solution

The fourth proportional to 19,919.67, 27,498.60 and 12,655.46 is: 17,470.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,919.67 : 27,498.60 = 12,655.46 : x
  2. Step 2: Convert to fraction form
    19,919.67/27,498.60 = 12,655.46/x
  3. Step 3: Cross multiply
    19,919.67x = 27,498.60 × 12,655.46
  4. Step 4: Simplify right side
    19,919.67x = 348,007,294.86
  5. Step 5: Solve for x
    x = 348,007,294.86/19,919.67
  6. Step 6: Final answer
    x = 17,470.54

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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.