Home / 11,276.04-15,561.54-7,085.64

Finding the Fourth Proportional to 11,276.04, 15,561.54 and 7,085.64

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Solution

The fourth proportional to 11,276.04, 15,561.54 and 7,085.64 is: 9,778.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,276.04 : 15,561.54 = 7,085.64 : x
  2. Step 2: Convert to fraction form
    11,276.04/15,561.54 = 7,085.64/x
  3. Step 3: Cross multiply
    11,276.04x = 15,561.54 × 7,085.64
  4. Step 4: Simplify right side
    11,276.04x = 110,263,470.29
  5. Step 5: Solve for x
    x = 110,263,470.29/11,276.04
  6. Step 6: Final answer
    x = 9,778.56

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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.