Home / 18,678.39-25,776.18-10,294.89

Finding the Fourth Proportional to 18,678.39, 25,776.18 and 10,294.89

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Solution

The fourth proportional to 18,678.39, 25,776.18 and 10,294.89 is: 14,206.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,678.39 : 25,776.18 = 10,294.89 : x
  2. Step 2: Convert to fraction form
    18,678.39/25,776.18 = 10,294.89/x
  3. Step 3: Cross multiply
    18,678.39x = 25,776.18 × 10,294.89
  4. Step 4: Simplify right side
    18,678.39x = 265,362,937.72
  5. Step 5: Solve for x
    x = 265,362,937.72/18,678.39
  6. Step 6: Final answer
    x = 14,206.95

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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.