Home / 18,964.78-26,171.34-10,581.28

Finding the Fourth Proportional to 18,964.78, 26,171.34 and 10,581.28

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Solution

The fourth proportional to 18,964.78, 26,171.34 and 10,581.28 is: 14,602.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964.78 : 26,171.34 = 10,581.28 : x
  2. Step 2: Convert to fraction form
    18,964.78/26,171.34 = 10,581.28/x
  3. Step 3: Cross multiply
    18,964.78x = 26,171.34 × 10,581.28
  4. Step 4: Simplify right side
    18,964.78x = 276,926,276.52
  5. Step 5: Solve for x
    x = 276,926,276.52/18,964.78
  6. Step 6: Final answer
    x = 14,602.13

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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.