Home / 9,705.21-13,393.11-5,513.46

Finding the Fourth Proportional to 9,705.21, 13,393.11 and 5,513.46

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Solution

The fourth proportional to 9,705.21, 13,393.11 and 5,513.46 is: 7,608.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,705.21 : 13,393.11 = 5,513.46 : x
  2. Step 2: Convert to fraction form
    9,705.21/13,393.11 = 5,513.46/x
  3. Step 3: Cross multiply
    9,705.21x = 13,393.11 × 5,513.46
  4. Step 4: Simplify right side
    9,705.21x = 73,842,376.26
  5. Step 5: Solve for x
    x = 73,842,376.26/9,705.21
  6. Step 6: Final answer
    x = 7,608.53

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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.