Home / 10,935.61-15,089.70-6,155.80

Finding the Fourth Proportional to 10,935.61, 15,089.70 and 6,155.80

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Solution

The fourth proportional to 10,935.61, 15,089.70 and 6,155.80 is: 8,494.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935.61 : 15,089.70 = 6,155.80 : x
  2. Step 2: Convert to fraction form
    10,935.61/15,089.70 = 6,155.80/x
  3. Step 3: Cross multiply
    10,935.61x = 15,089.70 × 6,155.80
  4. Step 4: Simplify right side
    10,935.61x = 92,889,175.26
  5. Step 5: Solve for x
    x = 92,889,175.26/10,935.61
  6. Step 6: Final answer
    x = 8,494.19

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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.