Home / 11,331.54-15,637.59-6,618.15

Finding the Fourth Proportional to 11,331.54, 15,637.59 and 6,618.15

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Solution

The fourth proportional to 11,331.54, 15,637.59 and 6,618.15 is: 9,133.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.54 : 15,637.59 = 6,618.15 : x
  2. Step 2: Convert to fraction form
    11,331.54/15,637.59 = 6,618.15/x
  3. Step 3: Cross multiply
    11,331.54x = 15,637.59 × 6,618.15
  4. Step 4: Simplify right side
    11,331.54x = 103,491,916.26
  5. Step 5: Solve for x
    x = 103,491,916.26/11,331.54
  6. Step 6: Final answer
    x = 9,133.08

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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.