Home / 8,420.19-11,617.16-5,064.27

Finding the Fourth Proportional to 8,420.19, 11,617.16 and 5,064.27

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Solution

The fourth proportional to 8,420.19, 11,617.16 and 5,064.27 is: 6,987.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420.19 : 11,617.16 = 5,064.27 : x
  2. Step 2: Convert to fraction form
    8,420.19/11,617.16 = 5,064.27/x
  3. Step 3: Cross multiply
    8,420.19x = 11,617.16 × 5,064.27
  4. Step 4: Simplify right side
    8,420.19x = 58,832,409.55
  5. Step 5: Solve for x
    x = 58,832,409.55/8,420.19
  6. Step 6: Final answer
    x = 6,987.06

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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.