Home / 13,740.39-20,606.47-7,499.23

Finding the Fourth Proportional to 13,740.39, 20,606.47 and 7,499.23

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Solution

The fourth proportional to 13,740.39, 20,606.47 and 7,499.23 is: 11,246.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740.39 : 20,606.47 = 7,499.23 : x
  2. Step 2: Convert to fraction form
    13,740.39/20,606.47 = 7,499.23/x
  3. Step 3: Cross multiply
    13,740.39x = 20,606.47 × 7,499.23
  4. Step 4: Simplify right side
    13,740.39x = 154,532,587.75
  5. Step 5: Solve for x
    x = 154,532,587.75/13,740.39
  6. Step 6: Final answer
    x = 11,246.59

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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.