Home / 10,213.85-15,320.48-2,818.76

Finding the Fourth Proportional to 10,213.85, 15,320.48 and 2,818.76

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Solution

The fourth proportional to 10,213.85, 15,320.48 and 2,818.76 is: 4,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,213.85 : 15,320.48 = 2,818.76 : x
  2. Step 2: Convert to fraction form
    10,213.85/15,320.48 = 2,818.76/x
  3. Step 3: Cross multiply
    10,213.85x = 15,320.48 × 2,818.76
  4. Step 4: Simplify right side
    10,213.85x = 43,184,665.51
  5. Step 5: Solve for x
    x = 43,184,665.51/10,213.85
  6. Step 6: Final answer
    x = 4,228.05

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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.