Home / 18,448.48-27,680.81-9,681.34

Finding the Fourth Proportional to 18,448.48, 27,680.81 and 9,681.34

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Solution

The fourth proportional to 18,448.48, 27,680.81 and 9,681.34 is: 14,526.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,448.48 : 27,680.81 = 9,681.34 : x
  2. Step 2: Convert to fraction form
    18,448.48/27,680.81 = 9,681.34/x
  3. Step 3: Cross multiply
    18,448.48x = 27,680.81 × 9,681.34
  4. Step 4: Simplify right side
    18,448.48x = 267,987,333.09
  5. Step 5: Solve for x
    x = 267,987,333.09/18,448.48
  6. Step 6: Final answer
    x = 14,526.26

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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.