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Finding the Fourth Proportional to 10,499.65, 15,750.04 and 4,258.73

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Solution

The fourth proportional to 10,499.65, 15,750.04 and 4,258.73 is: 6,388.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,499.65 : 15,750.04 = 4,258.73 : x
  2. Step 2: Convert to fraction form
    10,499.65/15,750.04 = 4,258.73/x
  3. Step 3: Cross multiply
    10,499.65x = 15,750.04 × 4,258.73
  4. Step 4: Simplify right side
    10,499.65x = 67,075,167.85
  5. Step 5: Solve for x
    x = 67,075,167.85/10,499.65
  6. Step 6: Final answer
    x = 6,388.32

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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.