Home / 13,341.66-18,410.68-7,672.42

Finding the Fourth Proportional to 13,341.66, 18,410.68 and 7,672.42

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Solution

The fourth proportional to 13,341.66, 18,410.68 and 7,672.42 is: 10,587.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,341.66 : 18,410.68 = 7,672.42 : x
  2. Step 2: Convert to fraction form
    13,341.66/18,410.68 = 7,672.42/x
  3. Step 3: Cross multiply
    13,341.66x = 18,410.68 × 7,672.42
  4. Step 4: Simplify right side
    13,341.66x = 141,254,469.45
  5. Step 5: Solve for x
    x = 141,254,469.45/13,341.66
  6. Step 6: Final answer
    x = 10,587.47

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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.