Home / 10,115.36-13,955.12-6,577.28

Finding the Fourth Proportional to 10,115.36, 13,955.12 and 6,577.28

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Solution

The fourth proportional to 10,115.36, 13,955.12 and 6,577.28 is: 9,074.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,115.36 : 13,955.12 = 6,577.28 : x
  2. Step 2: Convert to fraction form
    10,115.36/13,955.12 = 6,577.28/x
  3. Step 3: Cross multiply
    10,115.36x = 13,955.12 × 6,577.28
  4. Step 4: Simplify right side
    10,115.36x = 91,786,731.67
  5. Step 5: Solve for x
    x = 91,786,731.67/10,115.36
  6. Step 6: Final answer
    x = 9,074.00

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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.