Home / 13,551.65-20,327.51-8,875.58

Finding the Fourth Proportional to 13,551.65, 20,327.51 and 8,875.58

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Solution

The fourth proportional to 13,551.65, 20,327.51 and 8,875.58 is: 13,313.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.65 : 20,327.51 = 8,875.58 : x
  2. Step 2: Convert to fraction form
    13,551.65/20,327.51 = 8,875.58/x
  3. Step 3: Cross multiply
    13,551.65x = 20,327.51 × 8,875.58
  4. Step 4: Simplify right side
    13,551.65x = 180,418,311.83
  5. Step 5: Solve for x
    x = 180,418,311.83/13,551.65
  6. Step 6: Final answer
    x = 13,313.38

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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.