Home / 15,504.51-21,397.80-9,133.10

Finding the Fourth Proportional to 15,504.51, 21,397.80 and 9,133.10

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Solution

The fourth proportional to 15,504.51, 21,397.80 and 9,133.10 is: 12,604.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,504.51 : 21,397.80 = 9,133.10 : x
  2. Step 2: Convert to fraction form
    15,504.51/21,397.80 = 9,133.10/x
  3. Step 3: Cross multiply
    15,504.51x = 21,397.80 × 9,133.10
  4. Step 4: Simplify right side
    15,504.51x = 195,428,375.04
  5. Step 5: Solve for x
    x = 195,428,375.04/15,504.51
  6. Step 6: Final answer
    x = 12,604.62

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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.