Home / 15,119.23-20,864.34-8,404.68

Finding the Fourth Proportional to 15,119.23, 20,864.34 and 8,404.68

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Solution

The fourth proportional to 15,119.23, 20,864.34 and 8,404.68 is: 11,598.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,119.23 : 20,864.34 = 8,404.68 : x
  2. Step 2: Convert to fraction form
    15,119.23/20,864.34 = 8,404.68/x
  3. Step 3: Cross multiply
    15,119.23x = 20,864.34 × 8,404.68
  4. Step 4: Simplify right side
    15,119.23x = 175,358,210.87
  5. Step 5: Solve for x
    x = 175,358,210.87/15,119.23
  6. Step 6: Final answer
    x = 11,598.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.