Home / 10,887.40-15,033.06-8,365.52

Finding the Fourth Proportional to 10,887.40, 15,033.06 and 8,365.52

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Solution

The fourth proportional to 10,887.40, 15,033.06 and 8,365.52 is: 11,550.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,887.40 : 15,033.06 = 8,365.52 : x
  2. Step 2: Convert to fraction form
    10,887.40/15,033.06 = 8,365.52/x
  3. Step 3: Cross multiply
    10,887.40x = 15,033.06 × 8,365.52
  4. Step 4: Simplify right side
    10,887.40x = 125,759,364.09
  5. Step 5: Solve for x
    x = 125,759,364.09/10,887.40
  6. Step 6: Final answer
    x = 11,550.91

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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.