Home / 8,395.58-11,587.20-5,209.45

Finding the Fourth Proportional to 8,395.58, 11,587.20 and 5,209.45

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Solution

The fourth proportional to 8,395.58, 11,587.20 and 5,209.45 is: 7,189.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,395.58 : 11,587.20 = 5,209.45 : x
  2. Step 2: Convert to fraction form
    8,395.58/11,587.20 = 5,209.45/x
  3. Step 3: Cross multiply
    8,395.58x = 11,587.20 × 5,209.45
  4. Step 4: Simplify right side
    8,395.58x = 60,362,881.10
  5. Step 5: Solve for x
    x = 60,362,881.10/8,395.58
  6. Step 6: Final answer
    x = 7,189.84

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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.