Home / 18,968.16-26,140.56-13,653.84

Finding the Fourth Proportional to 18,968.16, 26,140.56 and 13,653.84

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Solution

The fourth proportional to 18,968.16, 26,140.56 and 13,653.84 is: 18,816.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.16 : 26,140.56 = 13,653.84 : x
  2. Step 2: Convert to fraction form
    18,968.16/26,140.56 = 13,653.84/x
  3. Step 3: Cross multiply
    18,968.16x = 26,140.56 × 13,653.84
  4. Step 4: Simplify right side
    18,968.16x = 356,919,023.75
  5. Step 5: Solve for x
    x = 356,919,023.75/18,968.16
  6. Step 6: Final answer
    x = 18,816.74

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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.