Home / 8,655.19-11,944.16-5,513.20

Finding the Fourth Proportional to 8,655.19, 11,944.16 and 5,513.20

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Solution

The fourth proportional to 8,655.19, 11,944.16 and 5,513.20 is: 7,608.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,655.19 : 11,944.16 = 5,513.20 : x
  2. Step 2: Convert to fraction form
    8,655.19/11,944.16 = 5,513.20/x
  3. Step 3: Cross multiply
    8,655.19x = 11,944.16 × 5,513.20
  4. Step 4: Simplify right side
    8,655.19x = 65,850,506.16
  5. Step 5: Solve for x
    x = 65,850,506.16/8,655.19
  6. Step 6: Final answer
    x = 7,608.21

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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.