Home / 13,294.36-18,346.40-7,629.56

Finding the Fourth Proportional to 13,294.36, 18,346.40 and 7,629.56

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Solution

The fourth proportional to 13,294.36, 18,346.40 and 7,629.56 is: 10,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,294.36 : 18,346.40 = 7,629.56 : x
  2. Step 2: Convert to fraction form
    13,294.36/18,346.40 = 7,629.56/x
  3. Step 3: Cross multiply
    13,294.36x = 18,346.40 × 7,629.56
  4. Step 4: Simplify right side
    13,294.36x = 139,974,959.58
  5. Step 5: Solve for x
    x = 139,974,959.58/13,294.36
  6. Step 6: Final answer
    x = 10,528.90

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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.