Home / 10,888.70-16,322.65-4,640.09

Finding the Fourth Proportional to 10,888.70, 16,322.65 and 4,640.09

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Solution

The fourth proportional to 10,888.70, 16,322.65 and 4,640.09 is: 6,955.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.70 : 16,322.65 = 4,640.09 : x
  2. Step 2: Convert to fraction form
    10,888.70/16,322.65 = 4,640.09/x
  3. Step 3: Cross multiply
    10,888.70x = 16,322.65 × 4,640.09
  4. Step 4: Simplify right side
    10,888.70x = 75,738,471.83
  5. Step 5: Solve for x
    x = 75,738,471.83/10,888.70
  6. Step 6: Final answer
    x = 6,955.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.