Home / 13,491.18-18,618.14-7,441.50

Finding the Fourth Proportional to 13,491.18, 18,618.14 and 7,441.50

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Solution

The fourth proportional to 13,491.18, 18,618.14 and 7,441.50 is: 10,269.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,491.18 : 18,618.14 = 7,441.50 : x
  2. Step 2: Convert to fraction form
    13,491.18/18,618.14 = 7,441.50/x
  3. Step 3: Cross multiply
    13,491.18x = 18,618.14 × 7,441.50
  4. Step 4: Simplify right side
    13,491.18x = 138,546,888.81
  5. Step 5: Solve for x
    x = 138,546,888.81/13,491.18
  6. Step 6: Final answer
    x = 10,269.44

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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.