Home / 15,306.26-21,117.20-10,004.13

Finding the Fourth Proportional to 15,306.26, 21,117.20 and 10,004.13

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Solution

The fourth proportional to 15,306.26, 21,117.20 and 10,004.13 is: 13,802.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,306.26 : 21,117.20 = 10,004.13 : x
  2. Step 2: Convert to fraction form
    15,306.26/21,117.20 = 10,004.13/x
  3. Step 3: Cross multiply
    15,306.26x = 21,117.20 × 10,004.13
  4. Step 4: Simplify right side
    15,306.26x = 211,259,291.84
  5. Step 5: Solve for x
    x = 211,259,291.84/15,306.26
  6. Step 6: Final answer
    x = 13,802.15

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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.