Home / 15,365.84-21,160.24-13,348.33

Finding the Fourth Proportional to 15,365.84, 21,160.24 and 13,348.33

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Solution

The fourth proportional to 15,365.84, 21,160.24 and 13,348.33 is: 18,381.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.84 : 21,160.24 = 13,348.33 : x
  2. Step 2: Convert to fraction form
    15,365.84/21,160.24 = 13,348.33/x
  3. Step 3: Cross multiply
    15,365.84x = 21,160.24 × 13,348.33
  4. Step 4: Simplify right side
    15,365.84x = 282,453,780.13
  5. Step 5: Solve for x
    x = 282,453,780.13/15,365.84
  6. Step 6: Final answer
    x = 18,381.93

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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.