Home / 15,002.07-20,703.99-8,630.61

Finding the Fourth Proportional to 15,002.07, 20,703.99 and 8,630.61

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Solution

The fourth proportional to 15,002.07, 20,703.99 and 8,630.61 is: 11,910.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,002.07 : 20,703.99 = 8,630.61 : x
  2. Step 2: Convert to fraction form
    15,002.07/20,703.99 = 8,630.61/x
  3. Step 3: Cross multiply
    15,002.07x = 20,703.99 × 8,630.61
  4. Step 4: Simplify right side
    15,002.07x = 178,688,063.13
  5. Step 5: Solve for x
    x = 178,688,063.13/15,002.07
  6. Step 6: Final answer
    x = 11,910.89

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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.