Home / 9,731.06-13,428.88-5,539.31

Finding the Fourth Proportional to 9,731.06, 13,428.88 and 5,539.31

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Solution

The fourth proportional to 9,731.06, 13,428.88 and 5,539.31 is: 7,644.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,731.06 : 13,428.88 = 5,539.31 : x
  2. Step 2: Convert to fraction form
    9,731.06/13,428.88 = 5,539.31/x
  3. Step 3: Cross multiply
    9,731.06x = 13,428.88 × 5,539.31
  4. Step 4: Simplify right side
    9,731.06x = 74,386,769.77
  5. Step 5: Solve for x
    x = 74,386,769.77/9,731.06
  6. Step 6: Final answer
    x = 7,644.26

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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.