Home / 13,222.16-19,834.32-5,431.04

Finding the Fourth Proportional to 13,222.16, 19,834.32 and 5,431.04

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Solution

The fourth proportional to 13,222.16, 19,834.32 and 5,431.04 is: 8,147.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.16 : 19,834.32 = 5,431.04 : x
  2. Step 2: Convert to fraction form
    13,222.16/19,834.32 = 5,431.04/x
  3. Step 3: Cross multiply
    13,222.16x = 19,834.32 × 5,431.04
  4. Step 4: Simplify right side
    13,222.16x = 107,720,985.29
  5. Step 5: Solve for x
    x = 107,720,985.29/13,222.16
  6. Step 6: Final answer
    x = 8,147.00

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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.