Home / 10,213.29-15,319.63-2,818.19

Finding the Fourth Proportional to 10,213.29, 15,319.63 and 2,818.19

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Solution

The fourth proportional to 10,213.29, 15,319.63 and 2,818.19 is: 4,227.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,213.29 : 15,319.63 = 2,818.19 : x
  2. Step 2: Convert to fraction form
    10,213.29/15,319.63 = 2,818.19/x
  3. Step 3: Cross multiply
    10,213.29x = 15,319.63 × 2,818.19
  4. Step 4: Simplify right side
    10,213.29x = 43,173,669.89
  5. Step 5: Solve for x
    x = 43,173,669.89/10,213.29
  6. Step 6: Final answer
    x = 4,227.20

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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.