Home / 7,887.32-10,889.02-5,238.36

Finding the Fourth Proportional to 7,887.32, 10,889.02 and 5,238.36

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Solution

The fourth proportional to 7,887.32, 10,889.02 and 5,238.36 is: 7,231.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,887.32 : 10,889.02 = 5,238.36 : x
  2. Step 2: Convert to fraction form
    7,887.32/10,889.02 = 5,238.36/x
  3. Step 3: Cross multiply
    7,887.32x = 10,889.02 × 5,238.36
  4. Step 4: Simplify right side
    7,887.32x = 57,040,606.81
  5. Step 5: Solve for x
    x = 57,040,606.81/7,887.32
  6. Step 6: Final answer
    x = 7,231.94

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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.