Home / 19,126.40-26,390.11-11,572.55

Finding the Fourth Proportional to 19,126.40, 26,390.11 and 11,572.55

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Solution

The fourth proportional to 19,126.40, 26,390.11 and 11,572.55 is: 15,967.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.40 : 26,390.11 = 11,572.55 : x
  2. Step 2: Convert to fraction form
    19,126.40/26,390.11 = 11,572.55/x
  3. Step 3: Cross multiply
    19,126.40x = 26,390.11 × 11,572.55
  4. Step 4: Simplify right side
    19,126.40x = 305,400,677.67
  5. Step 5: Solve for x
    x = 305,400,677.67/19,126.40
  6. Step 6: Final answer
    x = 15,967.49

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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.