Home / 13,387.77-20,079.93-3,527.81

Finding the Fourth Proportional to 13,387.77, 20,079.93 and 3,527.81

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Solution

The fourth proportional to 13,387.77, 20,079.93 and 3,527.81 is: 5,291.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.77 : 20,079.93 = 3,527.81 : x
  2. Step 2: Convert to fraction form
    13,387.77/20,079.93 = 3,527.81/x
  3. Step 3: Cross multiply
    13,387.77x = 20,079.93 × 3,527.81
  4. Step 4: Simplify right side
    13,387.77x = 70,838,077.45
  5. Step 5: Solve for x
    x = 70,838,077.45/13,387.77
  6. Step 6: Final answer
    x = 5,291.25

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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.