Home / 13,599.12-18,768.66-7,631.15

Finding the Fourth Proportional to 13,599.12, 18,768.66 and 7,631.15

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Solution

The fourth proportional to 13,599.12, 18,768.66 and 7,631.15 is: 10,532.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.12 : 18,768.66 = 7,631.15 : x
  2. Step 2: Convert to fraction form
    13,599.12/18,768.66 = 7,631.15/x
  3. Step 3: Cross multiply
    13,599.12x = 18,768.66 × 7,631.15
  4. Step 4: Simplify right side
    13,599.12x = 143,226,327.76
  5. Step 5: Solve for x
    x = 143,226,327.76/13,599.12
  6. Step 6: Final answer
    x = 10,532.03

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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.