Home / 13,298.90-18,352.60-7,330.79

Finding the Fourth Proportional to 13,298.90, 18,352.60 and 7,330.79

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Solution

The fourth proportional to 13,298.90, 18,352.60 and 7,330.79 is: 10,116.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.90 : 18,352.60 = 7,330.79 : x
  2. Step 2: Convert to fraction form
    13,298.90/18,352.60 = 7,330.79/x
  3. Step 3: Cross multiply
    13,298.90x = 18,352.60 × 7,330.79
  4. Step 4: Simplify right side
    13,298.90x = 134,539,084.11
  5. Step 5: Solve for x
    x = 134,539,084.11/13,298.90
  6. Step 6: Final answer
    x = 10,116.56

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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.