Home / 13,399.40-18,492.54-7,734.26

Finding the Fourth Proportional to 13,399.40, 18,492.54 and 7,734.26

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Solution

The fourth proportional to 13,399.40, 18,492.54 and 7,734.26 is: 10,674.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.40 : 18,492.54 = 7,734.26 : x
  2. Step 2: Convert to fraction form
    13,399.40/18,492.54 = 7,734.26/x
  3. Step 3: Cross multiply
    13,399.40x = 18,492.54 × 7,734.26
  4. Step 4: Simplify right side
    13,399.40x = 143,026,112.42
  5. Step 5: Solve for x
    x = 143,026,112.42/13,399.40
  6. Step 6: Final answer
    x = 10,674.07

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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.