Home / 13,568.18-18,724.64-7,599.69

Finding the Fourth Proportional to 13,568.18, 18,724.64 and 7,599.69

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Solution

The fourth proportional to 13,568.18, 18,724.64 and 7,599.69 is: 10,487.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.18 : 18,724.64 = 7,599.69 : x
  2. Step 2: Convert to fraction form
    13,568.18/18,724.64 = 7,599.69/x
  3. Step 3: Cross multiply
    13,568.18x = 18,724.64 × 7,599.69
  4. Step 4: Simplify right side
    13,568.18x = 142,301,421.36
  5. Step 5: Solve for x
    x = 142,301,421.36/13,568.18
  6. Step 6: Final answer
    x = 10,487.88

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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.