Home / 19,690.84-27,172.29-11,307.34

Finding the Fourth Proportional to 19,690.84, 27,172.29 and 11,307.34

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Solution

The fourth proportional to 19,690.84, 27,172.29 and 11,307.34 is: 15,603.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,690.84 : 27,172.29 = 11,307.34 : x
  2. Step 2: Convert to fraction form
    19,690.84/27,172.29 = 11,307.34/x
  3. Step 3: Cross multiply
    19,690.84x = 27,172.29 × 11,307.34
  4. Step 4: Simplify right side
    19,690.84x = 307,246,321.61
  5. Step 5: Solve for x
    x = 307,246,321.61/19,690.84
  6. Step 6: Final answer
    x = 15,603.52

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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.