Home / 13,559.63-20,331.66-7,226.71

Finding the Fourth Proportional to 13,559.63, 20,331.66 and 7,226.71

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Solution

The fourth proportional to 13,559.63, 20,331.66 and 7,226.71 is: 10,835.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,559.63 : 20,331.66 = 7,226.71 : x
  2. Step 2: Convert to fraction form
    13,559.63/20,331.66 = 7,226.71/x
  3. Step 3: Cross multiply
    13,559.63x = 20,331.66 × 7,226.71
  4. Step 4: Simplify right side
    13,559.63x = 146,931,010.64
  5. Step 5: Solve for x
    x = 146,931,010.64/13,559.63
  6. Step 6: Final answer
    x = 10,835.92

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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.