Home / 9,699.70-13,387.34-5,720.58

Finding the Fourth Proportional to 9,699.70, 13,387.34 and 5,720.58

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Solution

The fourth proportional to 9,699.70, 13,387.34 and 5,720.58 is: 7,895.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,699.70 : 13,387.34 = 5,720.58 : x
  2. Step 2: Convert to fraction form
    9,699.70/13,387.34 = 5,720.58/x
  3. Step 3: Cross multiply
    9,699.70x = 13,387.34 × 5,720.58
  4. Step 4: Simplify right side
    9,699.70x = 76,583,349.46
  5. Step 5: Solve for x
    x = 76,583,349.46/9,699.70
  6. Step 6: Final answer
    x = 7,895.43

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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.