Home / 10,212.49-15,314.95-3,636.91

Finding the Fourth Proportional to 10,212.49, 15,314.95 and 3,636.91

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Solution

The fourth proportional to 10,212.49, 15,314.95 and 3,636.91 is: 5,454.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,212.49 : 15,314.95 = 3,636.91 : x
  2. Step 2: Convert to fraction form
    10,212.49/15,314.95 = 3,636.91/x
  3. Step 3: Cross multiply
    10,212.49x = 15,314.95 × 3,636.91
  4. Step 4: Simplify right side
    10,212.49x = 55,699,094.80
  5. Step 5: Solve for x
    x = 55,699,094.80/10,212.49
  6. Step 6: Final answer
    x = 5,454.02

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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.