Home / 13,558.59-18,711.68-8,842.77

Finding the Fourth Proportional to 13,558.59, 18,711.68 and 8,842.77

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Solution

The fourth proportional to 13,558.59, 18,711.68 and 8,842.77 is: 12,203.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.59 : 18,711.68 = 8,842.77 : x
  2. Step 2: Convert to fraction form
    13,558.59/18,711.68 = 8,842.77/x
  3. Step 3: Cross multiply
    13,558.59x = 18,711.68 × 8,842.77
  4. Step 4: Simplify right side
    13,558.59x = 165,463,038.34
  5. Step 5: Solve for x
    x = 165,463,038.34/13,558.59
  6. Step 6: Final answer
    x = 12,203.56

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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.