Home / 9,705.34-13,393.11-5,513.50

Finding the Fourth Proportional to 9,705.34, 13,393.11 and 5,513.50

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Solution

The fourth proportional to 9,705.34, 13,393.11 and 5,513.50 is: 7,608.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,705.34 : 13,393.11 = 5,513.50 : x
  2. Step 2: Convert to fraction form
    9,705.34/13,393.11 = 5,513.50/x
  3. Step 3: Cross multiply
    9,705.34x = 13,393.11 × 5,513.50
  4. Step 4: Simplify right side
    9,705.34x = 73,842,911.99
  5. Step 5: Solve for x
    x = 73,842,911.99/9,705.34
  6. Step 6: Final answer
    x = 7,608.48

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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.