Home / 18,658.18-25,748.13-10,274.50

Finding the Fourth Proportional to 18,658.18, 25,748.13 and 10,274.50

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Solution

The fourth proportional to 18,658.18, 25,748.13 and 10,274.50 is: 14,178.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,658.18 : 25,748.13 = 10,274.50 : x
  2. Step 2: Convert to fraction form
    18,658.18/25,748.13 = 10,274.50/x
  3. Step 3: Cross multiply
    18,658.18x = 25,748.13 × 10,274.50
  4. Step 4: Simplify right side
    18,658.18x = 264,549,161.69
  5. Step 5: Solve for x
    x = 264,549,161.69/18,658.18
  6. Step 6: Final answer
    x = 14,178.72

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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.