Home / 13,971.08-19,307.77-11,449.22

Finding the Fourth Proportional to 13,971.08, 19,307.77 and 11,449.22

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Solution

The fourth proportional to 13,971.08, 19,307.77 and 11,449.22 is: 15,822.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971.08 : 19,307.77 = 11,449.22 : x
  2. Step 2: Convert to fraction form
    13,971.08/19,307.77 = 11,449.22/x
  3. Step 3: Cross multiply
    13,971.08x = 19,307.77 × 11,449.22
  4. Step 4: Simplify right side
    13,971.08x = 221,058,781.28
  5. Step 5: Solve for x
    x = 221,058,781.28/13,971.08
  6. Step 6: Final answer
    x = 15,822.60

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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.