Home / 8,699.24-12,004.62-4,720.20

Finding the Fourth Proportional to 8,699.24, 12,004.62 and 4,720.20

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Solution

The fourth proportional to 8,699.24, 12,004.62 and 4,720.20 is: 6,513.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.24 : 12,004.62 = 4,720.20 : x
  2. Step 2: Convert to fraction form
    8,699.24/12,004.62 = 4,720.20/x
  3. Step 3: Cross multiply
    8,699.24x = 12,004.62 × 4,720.20
  4. Step 4: Simplify right side
    8,699.24x = 56,664,207.32
  5. Step 5: Solve for x
    x = 56,664,207.32/8,699.24
  6. Step 6: Final answer
    x = 6,513.70

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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.