Home / 14,259.36-21,398.22-7,690.14

Finding the Fourth Proportional to 14,259.36, 21,398.22 and 7,690.14

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Solution

The fourth proportional to 14,259.36, 21,398.22 and 7,690.14 is: 11,540.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,259.36 : 21,398.22 = 7,690.14 : x
  2. Step 2: Convert to fraction form
    14,259.36/21,398.22 = 7,690.14/x
  3. Step 3: Cross multiply
    14,259.36x = 21,398.22 × 7,690.14
  4. Step 4: Simplify right side
    14,259.36x = 164,555,307.55
  5. Step 5: Solve for x
    x = 164,555,307.55/14,259.36
  6. Step 6: Final answer
    x = 11,540.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.