Home / 15,118.03-20,864.60-8,404.32

Finding the Fourth Proportional to 15,118.03, 20,864.60 and 8,404.32

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Solution

The fourth proportional to 15,118.03, 20,864.60 and 8,404.32 is: 11,598.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,118.03 : 20,864.60 = 8,404.32 : x
  2. Step 2: Convert to fraction form
    15,118.03/20,864.60 = 8,404.32/x
  3. Step 3: Cross multiply
    15,118.03x = 20,864.60 × 8,404.32
  4. Step 4: Simplify right side
    15,118.03x = 175,352,775.07
  5. Step 5: Solve for x
    x = 175,352,775.07/15,118.03
  6. Step 6: Final answer
    x = 11,598.92

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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.