Home / 11,187.18-15,435.81-6,941.70

Finding the Fourth Proportional to 11,187.18, 15,435.81 and 6,941.70

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Solution

The fourth proportional to 11,187.18, 15,435.81 and 6,941.70 is: 9,578.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187.18 : 15,435.81 = 6,941.70 : x
  2. Step 2: Convert to fraction form
    11,187.18/15,435.81 = 6,941.70/x
  3. Step 3: Cross multiply
    11,187.18x = 15,435.81 × 6,941.70
  4. Step 4: Simplify right side
    11,187.18x = 107,150,762.28
  5. Step 5: Solve for x
    x = 107,150,762.28/11,187.18
  6. Step 6: Final answer
    x = 9,578.00

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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.