Home / 19,366.24-26,721.32-12,661.72

Finding the Fourth Proportional to 19,366.24, 26,721.32 and 12,661.72

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Solution

The fourth proportional to 19,366.24, 26,721.32 and 12,661.72 is: 17,470.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,366.24 : 26,721.32 = 12,661.72 : x
  2. Step 2: Convert to fraction form
    19,366.24/26,721.32 = 12,661.72/x
  3. Step 3: Cross multiply
    19,366.24x = 26,721.32 × 12,661.72
  4. Step 4: Simplify right side
    19,366.24x = 338,337,871.87
  5. Step 5: Solve for x
    x = 338,337,871.87/19,366.24
  6. Step 6: Final answer
    x = 17,470.50

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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.