Home / 10,213.40-15,333.06-8,684.12

Finding the Fourth Proportional to 10,213.40, 15,333.06 and 8,684.12

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Solution

The fourth proportional to 10,213.40, 15,333.06 and 8,684.12 is: 13,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,213.40 : 15,333.06 = 8,684.12 : x
  2. Step 2: Convert to fraction form
    10,213.40/15,333.06 = 8,684.12/x
  3. Step 3: Cross multiply
    10,213.40x = 15,333.06 × 8,684.12
  4. Step 4: Simplify right side
    10,213.40x = 133,154,133.01
  5. Step 5: Solve for x
    x = 133,154,133.01/10,213.40
  6. Step 6: Final answer
    x = 13,037.20

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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.