Home / 9,699.63-13,387.10-5,721.72

Finding the Fourth Proportional to 9,699.63, 13,387.10 and 5,721.72

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Solution

The fourth proportional to 9,699.63, 13,387.10 and 5,721.72 is: 7,896.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,699.63 : 13,387.10 = 5,721.72 : x
  2. Step 2: Convert to fraction form
    9,699.63/13,387.10 = 5,721.72/x
  3. Step 3: Cross multiply
    9,699.63x = 13,387.10 × 5,721.72
  4. Step 4: Simplify right side
    9,699.63x = 76,597,237.81
  5. Step 5: Solve for x
    x = 76,597,237.81/9,699.63
  6. Step 6: Final answer
    x = 7,896.92

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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.