Home / 13,066.78-19,595.16-6,399.18

Finding the Fourth Proportional to 13,066.78, 19,595.16 and 6,399.18

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Solution

The fourth proportional to 13,066.78, 19,595.16 and 6,399.18 is: 9,596.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,066.78 : 19,595.16 = 6,399.18 : x
  2. Step 2: Convert to fraction form
    13,066.78/19,595.16 = 6,399.18/x
  3. Step 3: Cross multiply
    13,066.78x = 19,595.16 × 6,399.18
  4. Step 4: Simplify right side
    13,066.78x = 125,392,955.97
  5. Step 5: Solve for x
    x = 125,392,955.97/13,066.78
  6. Step 6: Final answer
    x = 9,596.32

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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.