Home / 13,558.23-18,711.36-7,591.86

Finding the Fourth Proportional to 13,558.23, 18,711.36 and 7,591.86

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Solution

The fourth proportional to 13,558.23, 18,711.36 and 7,591.86 is: 10,477.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.23 : 18,711.36 = 7,591.86 : x
  2. Step 2: Convert to fraction form
    13,558.23/18,711.36 = 7,591.86/x
  3. Step 3: Cross multiply
    13,558.23x = 18,711.36 × 7,591.86
  4. Step 4: Simplify right side
    13,558.23x = 142,054,025.53
  5. Step 5: Solve for x
    x = 142,054,025.53/13,558.23
  6. Step 6: Final answer
    x = 10,477.33

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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.