Home / 11,356.95-15,663.69-7,774.05

Finding the Fourth Proportional to 11,356.95, 15,663.69 and 7,774.05

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Solution

The fourth proportional to 11,356.95, 15,663.69 and 7,774.05 is: 10,722.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,356.95 : 15,663.69 = 7,774.05 : x
  2. Step 2: Convert to fraction form
    11,356.95/15,663.69 = 7,774.05/x
  3. Step 3: Cross multiply
    11,356.95x = 15,663.69 × 7,774.05
  4. Step 4: Simplify right side
    11,356.95x = 121,770,309.24
  5. Step 5: Solve for x
    x = 121,770,309.24/11,356.95
  6. Step 6: Final answer
    x = 10,722.10

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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.