Home / 10,922.90-15,079.32-7,356.60

Finding the Fourth Proportional to 10,922.90, 15,079.32 and 7,356.60

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Solution

The fourth proportional to 10,922.90, 15,079.32 and 7,356.60 is: 10,155.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,922.90 : 15,079.32 = 7,356.60 : x
  2. Step 2: Convert to fraction form
    10,922.90/15,079.32 = 7,356.60/x
  3. Step 3: Cross multiply
    10,922.90x = 15,079.32 × 7,356.60
  4. Step 4: Simplify right side
    10,922.90x = 110,932,525.51
  5. Step 5: Solve for x
    x = 110,932,525.51/10,922.90
  6. Step 6: Final answer
    x = 10,155.96

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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.