Home / 13,562.77-20,351.85-7,322.71

Finding the Fourth Proportional to 13,562.77, 20,351.85 and 7,322.71

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Solution

The fourth proportional to 13,562.77, 20,351.85 and 7,322.71 is: 10,988.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.77 : 20,351.85 = 7,322.71 : x
  2. Step 2: Convert to fraction form
    13,562.77/20,351.85 = 7,322.71/x
  3. Step 3: Cross multiply
    13,562.77x = 20,351.85 × 7,322.71
  4. Step 4: Simplify right side
    13,562.77x = 149,030,695.51
  5. Step 5: Solve for x
    x = 149,030,695.51/13,562.77
  6. Step 6: Final answer
    x = 10,988.22

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1.5x scale

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.