Home / 10,895.12-15,039.48-8,527.76

Finding the Fourth Proportional to 10,895.12, 15,039.48 and 8,527.76

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Solution

The fourth proportional to 10,895.12, 15,039.48 and 8,527.76 is: 11,771.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,895.12 : 15,039.48 = 8,527.76 : x
  2. Step 2: Convert to fraction form
    10,895.12/15,039.48 = 8,527.76/x
  3. Step 3: Cross multiply
    10,895.12x = 15,039.48 × 8,527.76
  4. Step 4: Simplify right side
    10,895.12x = 128,253,075.96
  5. Step 5: Solve for x
    x = 128,253,075.96/10,895.12
  6. Step 6: Final answer
    x = 11,771.61

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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.