Home / 19,353.42-26,680.73-12,981.15

Finding the Fourth Proportional to 19,353.42, 26,680.73 and 12,981.15

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Solution

The fourth proportional to 19,353.42, 26,680.73 and 12,981.15 is: 17,895.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,353.42 : 26,680.73 = 12,981.15 : x
  2. Step 2: Convert to fraction form
    19,353.42/26,680.73 = 12,981.15/x
  3. Step 3: Cross multiply
    19,353.42x = 26,680.73 × 12,981.15
  4. Step 4: Simplify right side
    19,353.42x = 346,346,493.33
  5. Step 5: Solve for x
    x = 346,346,493.33/19,353.42
  6. Step 6: Final answer
    x = 17,895.88

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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.