Home / 6,513.30-8,987.67-4,812.71

Finding the Fourth Proportional to 6,513.30, 8,987.67 and 4,812.71

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Solution

The fourth proportional to 6,513.30, 8,987.67 and 4,812.71 is: 6,641.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,513.30 : 8,987.67 = 4,812.71 : x
  2. Step 2: Convert to fraction form
    6,513.30/8,987.67 = 4,812.71/x
  3. Step 3: Cross multiply
    6,513.30x = 8,987.67 × 4,812.71
  4. Step 4: Simplify right side
    6,513.30x = 43,255,004.35
  5. Step 5: Solve for x
    x = 43,255,004.35/6,513.30
  6. Step 6: Final answer
    x = 6,641.03

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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.