Home / 10,538.81-15,808.21-3,148.46

Finding the Fourth Proportional to 10,538.81, 15,808.21 and 3,148.46

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Solution

The fourth proportional to 10,538.81, 15,808.21 and 3,148.46 is: 4,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,538.81 : 15,808.21 = 3,148.46 : x
  2. Step 2: Convert to fraction form
    10,538.81/15,808.21 = 3,148.46/x
  3. Step 3: Cross multiply
    10,538.81x = 15,808.21 × 3,148.46
  4. Step 4: Simplify right side
    10,538.81x = 49,771,516.86
  5. Step 5: Solve for x
    x = 49,771,516.86/10,538.81
  6. Step 6: Final answer
    x = 4,722.69

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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.