Home / 13,838.04-20,718.18-11,476.08

Finding the Fourth Proportional to 13,838.04, 20,718.18 and 11,476.08

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Solution

The fourth proportional to 13,838.04, 20,718.18 and 11,476.08 is: 17,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,838.04 : 20,718.18 = 11,476.08 : x
  2. Step 2: Convert to fraction form
    13,838.04/20,718.18 = 11,476.08/x
  3. Step 3: Cross multiply
    13,838.04x = 20,718.18 × 11,476.08
  4. Step 4: Simplify right side
    13,838.04x = 237,763,491.13
  5. Step 5: Solve for x
    x = 237,763,491.13/13,838.04
  6. Step 6: Final answer
    x = 17,181.88

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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.