Home / 15,306.38-21,117.38-10,004.25

Finding the Fourth Proportional to 15,306.38, 21,117.38 and 10,004.25

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Solution

The fourth proportional to 15,306.38, 21,117.38 and 10,004.25 is: 13,802.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306.38 : 21,117.38 = 10,004.25 : x
  2. Step 2: Convert to fraction form
    15,306.38/21,117.38 = 10,004.25/x
  3. Step 3: Cross multiply
    15,306.38x = 21,117.38 × 10,004.25
  4. Step 4: Simplify right side
    15,306.38x = 211,263,578.03
  5. Step 5: Solve for x
    x = 211,263,578.03/15,306.38
  6. Step 6: Final answer
    x = 13,802.32

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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.