Home / 10,370.68-15,556.02-8,979.64

Finding the Fourth Proportional to 10,370.68, 15,556.02 and 8,979.64

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Solution

The fourth proportional to 10,370.68, 15,556.02 and 8,979.64 is: 13,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,370.68 : 15,556.02 = 8,979.64 : x
  2. Step 2: Convert to fraction form
    10,370.68/15,556.02 = 8,979.64/x
  3. Step 3: Cross multiply
    10,370.68x = 15,556.02 × 8,979.64
  4. Step 4: Simplify right side
    10,370.68x = 139,687,459.43
  5. Step 5: Solve for x
    x = 139,687,459.43/10,370.68
  6. Step 6: Final answer
    x = 13,469.46

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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.