Home / 21,265.93-29,346.95-13,196.58

Finding the Fourth Proportional to 21,265.93, 29,346.95 and 13,196.58

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Solution

The fourth proportional to 21,265.93, 29,346.95 and 13,196.58 is: 18,211.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265.93 : 29,346.95 = 13,196.58 : x
  2. Step 2: Convert to fraction form
    21,265.93/29,346.95 = 13,196.58/x
  3. Step 3: Cross multiply
    21,265.93x = 29,346.95 × 13,196.58
  4. Step 4: Simplify right side
    21,265.93x = 387,279,307.45
  5. Step 5: Solve for x
    x = 387,279,307.45/21,265.93
  6. Step 6: Final answer
    x = 18,211.26

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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.