Home / 15,256.26-21,055.77-9,966.42

Finding the Fourth Proportional to 15,256.26, 21,055.77 and 9,966.42

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Solution

The fourth proportional to 15,256.26, 21,055.77 and 9,966.42 is: 13,755.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,256.26 : 21,055.77 = 9,966.42 : x
  2. Step 2: Convert to fraction form
    15,256.26/21,055.77 = 9,966.42/x
  3. Step 3: Cross multiply
    15,256.26x = 21,055.77 × 9,966.42
  4. Step 4: Simplify right side
    15,256.26x = 209,850,647.24
  5. Step 5: Solve for x
    x = 209,850,647.24/15,256.26
  6. Step 6: Final answer
    x = 13,755.05

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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.