Home / 11,114.31-15,335.81-6,637.79

Finding the Fourth Proportional to 11,114.31, 15,335.81 and 6,637.79

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Solution

The fourth proportional to 11,114.31, 15,335.81 and 6,637.79 is: 9,158.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,114.31 : 15,335.81 = 6,637.79 : x
  2. Step 2: Convert to fraction form
    11,114.31/15,335.81 = 6,637.79/x
  3. Step 3: Cross multiply
    11,114.31x = 15,335.81 × 6,637.79
  4. Step 4: Simplify right side
    11,114.31x = 101,795,886.26
  5. Step 5: Solve for x
    x = 101,795,886.26/11,114.31
  6. Step 6: Final answer
    x = 9,158.99

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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.