Home / 9,829.10-13,581.43-7,855.94

Finding the Fourth Proportional to 9,829.10, 13,581.43 and 7,855.94

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Solution

The fourth proportional to 9,829.10, 13,581.43 and 7,855.94 is: 10,855.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,829.10 : 13,581.43 = 7,855.94 : x
  2. Step 2: Convert to fraction form
    9,829.10/13,581.43 = 7,855.94/x
  3. Step 3: Cross multiply
    9,829.10x = 13,581.43 × 7,855.94
  4. Step 4: Simplify right side
    9,829.10x = 106,694,899.19
  5. Step 5: Solve for x
    x = 106,694,899.19/9,829.10
  6. Step 6: Final answer
    x = 10,855.00

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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.