Home / 14,420.77-19,900.66-8,133.14

Finding the Fourth Proportional to 14,420.77, 19,900.66 and 8,133.14

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Solution

The fourth proportional to 14,420.77, 19,900.66 and 8,133.14 is: 11,223.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.77 : 19,900.66 = 8,133.14 : x
  2. Step 2: Convert to fraction form
    14,420.77/19,900.66 = 8,133.14/x
  3. Step 3: Cross multiply
    14,420.77x = 19,900.66 × 8,133.14
  4. Step 4: Simplify right side
    14,420.77x = 161,854,883.29
  5. Step 5: Solve for x
    x = 161,854,883.29/14,420.77
  6. Step 6: Final answer
    x = 11,223.74

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Double scale
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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.