Home / 13,464.12-18,579.89-7,717.46

Finding the Fourth Proportional to 13,464.12, 18,579.89 and 7,717.46

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Solution

The fourth proportional to 13,464.12, 18,579.89 and 7,717.46 is: 10,649.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,464.12 : 18,579.89 = 7,717.46 : x
  2. Step 2: Convert to fraction form
    13,464.12/18,579.89 = 7,717.46/x
  3. Step 3: Cross multiply
    13,464.12x = 18,579.89 × 7,717.46
  4. Step 4: Simplify right side
    13,464.12x = 143,389,492.14
  5. Step 5: Solve for x
    x = 143,389,492.14/13,464.12
  6. Step 6: Final answer
    x = 10,649.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.