Home / 12,207.42-18,300.87-8,498.70

Finding the Fourth Proportional to 12,207.42, 18,300.87 and 8,498.70

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Solution

The fourth proportional to 12,207.42, 18,300.87 and 8,498.70 is: 12,740.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.42 : 18,300.87 = 8,498.70 : x
  2. Step 2: Convert to fraction form
    12,207.42/18,300.87 = 8,498.70/x
  3. Step 3: Cross multiply
    12,207.42x = 18,300.87 × 8,498.70
  4. Step 4: Simplify right side
    12,207.42x = 155,533,603.87
  5. Step 5: Solve for x
    x = 155,533,603.87/12,207.42
  6. Step 6: Final answer
    x = 12,740.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.