Home / 19,373.80-26,718.24-12,657.28

Finding the Fourth Proportional to 19,373.80, 26,718.24 and 12,657.28

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Solution

The fourth proportional to 19,373.80, 26,718.24 and 12,657.28 is: 17,455.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,373.80 : 26,718.24 = 12,657.28 : x
  2. Step 2: Convert to fraction form
    19,373.80/26,718.24 = 12,657.28/x
  3. Step 3: Cross multiply
    19,373.80x = 26,718.24 × 12,657.28
  4. Step 4: Simplify right side
    19,373.80x = 338,180,244.79
  5. Step 5: Solve for x
    x = 338,180,244.79/19,373.80
  6. Step 6: Final answer
    x = 17,455.55

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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.