Home / 6,681.78-9,210.60-5,000.64

Finding the Fourth Proportional to 6,681.78, 9,210.60 and 5,000.64

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Solution

The fourth proportional to 6,681.78, 9,210.60 and 5,000.64 is: 6,893.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,681.78 : 9,210.60 = 5,000.64 : x
  2. Step 2: Convert to fraction form
    6,681.78/9,210.60 = 5,000.64/x
  3. Step 3: Cross multiply
    6,681.78x = 9,210.60 × 5,000.64
  4. Step 4: Simplify right side
    6,681.78x = 46,058,894.78
  5. Step 5: Solve for x
    x = 46,058,894.78/6,681.78
  6. Step 6: Final answer
    x = 6,893.21

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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.