Home / 12,802.82-17,661.60-11,031.35

Finding the Fourth Proportional to 12,802.82, 17,661.60 and 11,031.35

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Solution

The fourth proportional to 12,802.82, 17,661.60 and 11,031.35 is: 15,217.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,802.82 : 17,661.60 = 11,031.35 : x
  2. Step 2: Convert to fraction form
    12,802.82/17,661.60 = 11,031.35/x
  3. Step 3: Cross multiply
    12,802.82x = 17,661.60 × 11,031.35
  4. Step 4: Simplify right side
    12,802.82x = 194,831,291.16
  5. Step 5: Solve for x
    x = 194,831,291.16/12,802.82
  6. Step 6: Final answer
    x = 15,217.84

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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.