Home / 8,966.36-13,444.15-3,420.12

Finding the Fourth Proportional to 8,966.36, 13,444.15 and 3,420.12

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Solution

The fourth proportional to 8,966.36, 13,444.15 and 3,420.12 is: 5,128.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,966.36 : 13,444.15 = 3,420.12 : x
  2. Step 2: Convert to fraction form
    8,966.36/13,444.15 = 3,420.12/x
  3. Step 3: Cross multiply
    8,966.36x = 13,444.15 × 3,420.12
  4. Step 4: Simplify right side
    8,966.36x = 45,980,606.30
  5. Step 5: Solve for x
    x = 45,980,606.30/8,966.36
  6. Step 6: Final answer
    x = 5,128.13

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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.