Home / 11,127.66-15,274.35-9,840.51

Finding the Fourth Proportional to 11,127.66, 15,274.35 and 9,840.51

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Solution

The fourth proportional to 11,127.66, 15,274.35 and 9,840.51 is: 13,507.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.66 : 15,274.35 = 9,840.51 : x
  2. Step 2: Convert to fraction form
    11,127.66/15,274.35 = 9,840.51/x
  3. Step 3: Cross multiply
    11,127.66x = 15,274.35 × 9,840.51
  4. Step 4: Simplify right side
    11,127.66x = 150,307,393.92
  5. Step 5: Solve for x
    x = 150,307,393.92/11,127.66
  6. Step 6: Final answer
    x = 13,507.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.