Home / 10,490.92-14,477.88-5,775.64

Finding the Fourth Proportional to 10,490.92, 14,477.88 and 5,775.64

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Solution

The fourth proportional to 10,490.92, 14,477.88 and 5,775.64 is: 7,970.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,490.92 : 14,477.88 = 5,775.64 : x
  2. Step 2: Convert to fraction form
    10,490.92/14,477.88 = 5,775.64/x
  3. Step 3: Cross multiply
    10,490.92x = 14,477.88 × 5,775.64
  4. Step 4: Simplify right side
    10,490.92x = 83,619,022.84
  5. Step 5: Solve for x
    x = 83,619,022.84/10,490.92
  6. Step 6: Final answer
    x = 7,970.61

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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.