Home / 7,931.36-11,903.04-5,426.57

Finding the Fourth Proportional to 7,931.36, 11,903.04 and 5,426.57

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Solution

The fourth proportional to 7,931.36, 11,903.04 and 5,426.57 is: 8,143.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931.36 : 11,903.04 = 5,426.57 : x
  2. Step 2: Convert to fraction form
    7,931.36/11,903.04 = 5,426.57/x
  3. Step 3: Cross multiply
    7,931.36x = 11,903.04 × 5,426.57
  4. Step 4: Simplify right side
    7,931.36x = 64,592,709.53
  5. Step 5: Solve for x
    x = 64,592,709.53/7,931.36
  6. Step 6: Final answer
    x = 8,143.96

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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.