Home / 13,723.67-20,570.69-6,688.16

Finding the Fourth Proportional to 13,723.67, 20,570.69 and 6,688.16

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Solution

The fourth proportional to 13,723.67, 20,570.69 and 6,688.16 is: 10,025.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.67 : 20,570.69 = 6,688.16 : x
  2. Step 2: Convert to fraction form
    13,723.67/20,570.69 = 6,688.16/x
  3. Step 3: Cross multiply
    13,723.67x = 20,570.69 × 6,688.16
  4. Step 4: Simplify right side
    13,723.67x = 137,579,929.74
  5. Step 5: Solve for x
    x = 137,579,929.74/13,723.67
  6. Step 6: Final answer
    x = 10,025.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.