Home / 9,419.81-14,129.71-5,522.09

Finding the Fourth Proportional to 9,419.81, 14,129.71 and 5,522.09

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Solution

The fourth proportional to 9,419.81, 14,129.71 and 5,522.09 is: 8,283.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.81 : 14,129.71 = 5,522.09 : x
  2. Step 2: Convert to fraction form
    9,419.81/14,129.71 = 5,522.09/x
  3. Step 3: Cross multiply
    9,419.81x = 14,129.71 × 5,522.09
  4. Step 4: Simplify right side
    9,419.81x = 78,025,445.84
  5. Step 5: Solve for x
    x = 78,025,445.84/9,419.81
  6. Step 6: Final answer
    x = 8,283.13

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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.