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Finding the Fourth Proportional to 6,899.07, 10,341.43 and 6,290.13

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Solution

The fourth proportional to 6,899.07, 10,341.43 and 6,290.13 is: 9,428.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.07 : 10,341.43 = 6,290.13 : x
  2. Step 2: Convert to fraction form
    6,899.07/10,341.43 = 6,290.13/x
  3. Step 3: Cross multiply
    6,899.07x = 10,341.43 × 6,290.13
  4. Step 4: Simplify right side
    6,899.07x = 65,048,977.28
  5. Step 5: Solve for x
    x = 65,048,977.28/6,899.07
  6. Step 6: Final answer
    x = 9,428.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.