Home / 13,358.79-18,435.32-7,694.55

Finding the Fourth Proportional to 13,358.79, 18,435.32 and 7,694.55

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Solution

The fourth proportional to 13,358.79, 18,435.32 and 7,694.55 is: 10,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.79 : 18,435.32 = 7,694.55 : x
  2. Step 2: Convert to fraction form
    13,358.79/18,435.32 = 7,694.55/x
  3. Step 3: Cross multiply
    13,358.79x = 18,435.32 × 7,694.55
  4. Step 4: Simplify right side
    13,358.79x = 141,851,492.15
  5. Step 5: Solve for x
    x = 141,851,492.15/13,358.79
  6. Step 6: Final answer
    x = 10,618.59

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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.