Home / 13,390.55-20,087.54-4,502.07

Finding the Fourth Proportional to 13,390.55, 20,087.54 and 4,502.07

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Solution

The fourth proportional to 13,390.55, 20,087.54 and 4,502.07 is: 6,753.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.55 : 20,087.54 = 4,502.07 : x
  2. Step 2: Convert to fraction form
    13,390.55/20,087.54 = 4,502.07/x
  3. Step 3: Cross multiply
    13,390.55x = 20,087.54 × 4,502.07
  4. Step 4: Simplify right side
    13,390.55x = 90,435,474.17
  5. Step 5: Solve for x
    x = 90,435,474.17/13,390.55
  6. Step 6: Final answer
    x = 6,753.68

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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.