Home / 10,889.01-15,022.32-7,110.84

Finding the Fourth Proportional to 10,889.01, 15,022.32 and 7,110.84

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Solution

The fourth proportional to 10,889.01, 15,022.32 and 7,110.84 is: 9,810.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,889.01 : 15,022.32 = 7,110.84 : x
  2. Step 2: Convert to fraction form
    10,889.01/15,022.32 = 7,110.84/x
  3. Step 3: Cross multiply
    10,889.01x = 15,022.32 × 7,110.84
  4. Step 4: Simplify right side
    10,889.01x = 106,821,313.95
  5. Step 5: Solve for x
    x = 106,821,313.95/10,889.01
  6. Step 6: Final answer
    x = 9,810.01

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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.