Home / 18,946.79-26,146.70-10,449.21

Finding the Fourth Proportional to 18,946.79, 26,146.70 and 10,449.21

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Solution

The fourth proportional to 18,946.79, 26,146.70 and 10,449.21 is: 14,419.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.79 : 26,146.70 = 10,449.21 : x
  2. Step 2: Convert to fraction form
    18,946.79/26,146.70 = 10,449.21/x
  3. Step 3: Cross multiply
    18,946.79x = 26,146.70 × 10,449.21
  4. Step 4: Simplify right side
    18,946.79x = 273,212,359.11
  5. Step 5: Solve for x
    x = 273,212,359.11/18,946.79
  6. Step 6: Final answer
    x = 14,419.98

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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.