Home / 13,109.87-18,092.63-7,446.40

Finding the Fourth Proportional to 13,109.87, 18,092.63 and 7,446.40

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Solution

The fourth proportional to 13,109.87, 18,092.63 and 7,446.40 is: 10,276.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109.87 : 18,092.63 = 7,446.40 : x
  2. Step 2: Convert to fraction form
    13,109.87/18,092.63 = 7,446.40/x
  3. Step 3: Cross multiply
    13,109.87x = 18,092.63 × 7,446.40
  4. Step 4: Simplify right side
    13,109.87x = 134,724,933.42
  5. Step 5: Solve for x
    x = 134,724,933.42/13,109.87
  6. Step 6: Final answer
    x = 10,276.60

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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.