Home / 14,431.40-21,649.38-6,111.47

Finding the Fourth Proportional to 14,431.40, 21,649.38 and 6,111.47

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Solution

The fourth proportional to 14,431.40, 21,649.38 and 6,111.47 is: 9,168.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,431.40 : 21,649.38 = 6,111.47 : x
  2. Step 2: Convert to fraction form
    14,431.40/21,649.38 = 6,111.47/x
  3. Step 3: Cross multiply
    14,431.40x = 21,649.38 × 6,111.47
  4. Step 4: Simplify right side
    14,431.40x = 132,309,536.39
  5. Step 5: Solve for x
    x = 132,309,536.39/14,431.40
  6. Step 6: Final answer
    x = 9,168.17

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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.