Home / 8,990.01-13,476.31-3,439.08

Finding the Fourth Proportional to 8,990.01, 13,476.31 and 3,439.08

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Solution

The fourth proportional to 8,990.01, 13,476.31 and 3,439.08 is: 5,155.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.01 : 13,476.31 = 3,439.08 : x
  2. Step 2: Convert to fraction form
    8,990.01/13,476.31 = 3,439.08/x
  3. Step 3: Cross multiply
    8,990.01x = 13,476.31 × 3,439.08
  4. Step 4: Simplify right side
    8,990.01x = 46,346,099.60
  5. Step 5: Solve for x
    x = 46,346,099.60/8,990.01
  6. Step 6: Final answer
    x = 5,155.29

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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.