Home / 10,256.34-15,383.88-4,015.20

Finding the Fourth Proportional to 10,256.34, 15,383.88 and 4,015.20

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Solution

The fourth proportional to 10,256.34, 15,383.88 and 4,015.20 is: 6,022.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,256.34 : 15,383.88 = 4,015.20 : x
  2. Step 2: Convert to fraction form
    10,256.34/15,383.88 = 4,015.20/x
  3. Step 3: Cross multiply
    10,256.34x = 15,383.88 × 4,015.20
  4. Step 4: Simplify right side
    10,256.34x = 61,769,354.98
  5. Step 5: Solve for x
    x = 61,769,354.98/10,256.34
  6. Step 6: Final answer
    x = 6,022.55

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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.