Home / 10,157.21-15,225.42-5,765.39

Finding the Fourth Proportional to 10,157.21, 15,225.42 and 5,765.39

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Solution

The fourth proportional to 10,157.21, 15,225.42 and 5,765.39 is: 8,642.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,157.21 : 15,225.42 = 5,765.39 : x
  2. Step 2: Convert to fraction form
    10,157.21/15,225.42 = 5,765.39/x
  3. Step 3: Cross multiply
    10,157.21x = 15,225.42 × 5,765.39
  4. Step 4: Simplify right side
    10,157.21x = 87,780,484.21
  5. Step 5: Solve for x
    x = 87,780,484.21/10,157.21
  6. Step 6: Final answer
    x = 8,642.18

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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.