Home / 9,815.12-14,719.56-3,240.08

Finding the Fourth Proportional to 9,815.12, 14,719.56 and 3,240.08

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Solution

The fourth proportional to 9,815.12, 14,719.56 and 3,240.08 is: 4,859.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,815.12 : 14,719.56 = 3,240.08 : x
  2. Step 2: Convert to fraction form
    9,815.12/14,719.56 = 3,240.08/x
  3. Step 3: Cross multiply
    9,815.12x = 14,719.56 × 3,240.08
  4. Step 4: Simplify right side
    9,815.12x = 47,692,551.96
  5. Step 5: Solve for x
    x = 47,692,551.96/9,815.12
  6. Step 6: Final answer
    x = 4,859.09

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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.