Home / 8,365.40-12,556.20-4,210.10

Finding the Fourth Proportional to 8,365.40, 12,556.20 and 4,210.10

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Solution

The fourth proportional to 8,365.40, 12,556.20 and 4,210.10 is: 6,319.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,365.40 : 12,556.20 = 4,210.10 : x
  2. Step 2: Convert to fraction form
    8,365.40/12,556.20 = 4,210.10/x
  3. Step 3: Cross multiply
    8,365.40x = 12,556.20 × 4,210.10
  4. Step 4: Simplify right side
    8,365.40x = 52,862,857.62
  5. Step 5: Solve for x
    x = 52,862,857.62/8,365.40
  6. Step 6: Final answer
    x = 6,319.23

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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.