Home / 13,189.42-19,784.22-5,398.24

Finding the Fourth Proportional to 13,189.42, 19,784.22 and 5,398.24

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Solution

The fourth proportional to 13,189.42, 19,784.22 and 5,398.24 is: 8,097.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.42 : 19,784.22 = 5,398.24 : x
  2. Step 2: Convert to fraction form
    13,189.42/19,784.22 = 5,398.24/x
  3. Step 3: Cross multiply
    13,189.42x = 19,784.22 × 5,398.24
  4. Step 4: Simplify right side
    13,189.42x = 106,799,967.77
  5. Step 5: Solve for x
    x = 106,799,967.77/13,189.42
  6. Step 6: Final answer
    x = 8,097.40

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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.