Home / 13,337.28-18,405.18-7,368.84

Finding the Fourth Proportional to 13,337.28, 18,405.18 and 7,368.84

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Solution

The fourth proportional to 13,337.28, 18,405.18 and 7,368.84 is: 10,168.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,337.28 : 18,405.18 = 7,368.84 : x
  2. Step 2: Convert to fraction form
    13,337.28/18,405.18 = 7,368.84/x
  3. Step 3: Cross multiply
    13,337.28x = 18,405.18 × 7,368.84
  4. Step 4: Simplify right side
    13,337.28x = 135,624,826.59
  5. Step 5: Solve for x
    x = 135,624,826.59/13,337.28
  6. Step 6: Final answer
    x = 10,168.85

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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.