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Finding the Fourth Proportional to 14,643.93, 21,978.20 and 6,330.29

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Solution

The fourth proportional to 14,643.93, 21,978.20 and 6,330.29 is: 9,500.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,643.93 : 21,978.20 = 6,330.29 : x
  2. Step 2: Convert to fraction form
    14,643.93/21,978.20 = 6,330.29/x
  3. Step 3: Cross multiply
    14,643.93x = 21,978.20 × 6,330.29
  4. Step 4: Simplify right side
    14,643.93x = 139,128,402.97
  5. Step 5: Solve for x
    x = 139,128,402.97/14,643.93
  6. Step 6: Final answer
    x = 9,500.76

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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.