Home / 8,556.12-12,809.34-4,987.35

Finding the Fourth Proportional to 8,556.12, 12,809.34 and 4,987.35

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Solution

The fourth proportional to 8,556.12, 12,809.34 and 4,987.35 is: 7,466.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,556.12 : 12,809.34 = 4,987.35 : x
  2. Step 2: Convert to fraction form
    8,556.12/12,809.34 = 4,987.35/x
  3. Step 3: Cross multiply
    8,556.12x = 12,809.34 × 4,987.35
  4. Step 4: Simplify right side
    8,556.12x = 63,884,661.85
  5. Step 5: Solve for x
    x = 63,884,661.85/8,556.12
  6. Step 6: Final answer
    x = 7,466.55

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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.