Home / 10,303.55-15,455.34-3,728.20

Finding the Fourth Proportional to 10,303.55, 15,455.34 and 3,728.20

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Solution

The fourth proportional to 10,303.55, 15,455.34 and 3,728.20 is: 5,592.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,303.55 : 15,455.34 = 3,728.20 : x
  2. Step 2: Convert to fraction form
    10,303.55/15,455.34 = 3,728.20/x
  3. Step 3: Cross multiply
    10,303.55x = 15,455.34 × 3,728.20
  4. Step 4: Simplify right side
    10,303.55x = 57,620,502.67
  5. Step 5: Solve for x
    x = 57,620,502.67/10,303.55
  6. Step 6: Final answer
    x = 5,592.30

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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.