Home / 13,326.28-18,406.62-9,984.04

Finding the Fourth Proportional to 13,326.28, 18,406.62 and 9,984.04

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Solution

The fourth proportional to 13,326.28, 18,406.62 and 9,984.04 is: 13,790.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.28 : 18,406.62 = 9,984.04 : x
  2. Step 2: Convert to fraction form
    13,326.28/18,406.62 = 9,984.04/x
  3. Step 3: Cross multiply
    13,326.28x = 18,406.62 × 9,984.04
  4. Step 4: Simplify right side
    13,326.28x = 183,772,430.34
  5. Step 5: Solve for x
    x = 183,772,430.34/13,326.28
  6. Step 6: Final answer
    x = 13,790.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.