Home / 13,412.02-20,118.93-3,551.17

Finding the Fourth Proportional to 13,412.02, 20,118.93 and 3,551.17

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Solution

The fourth proportional to 13,412.02, 20,118.93 and 3,551.17 is: 5,326.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.02 : 20,118.93 = 3,551.17 : x
  2. Step 2: Convert to fraction form
    13,412.02/20,118.93 = 3,551.17/x
  3. Step 3: Cross multiply
    13,412.02x = 20,118.93 × 3,551.17
  4. Step 4: Simplify right side
    13,412.02x = 71,445,740.65
  5. Step 5: Solve for x
    x = 71,445,740.65/13,412.02
  6. Step 6: Final answer
    x = 5,326.99

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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.