Home / 11,382.94-15,698.64-7,402.60

Finding the Fourth Proportional to 11,382.94, 15,698.64 and 7,402.60

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Solution

The fourth proportional to 11,382.94, 15,698.64 and 7,402.60 is: 10,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,382.94 : 15,698.64 = 7,402.60 : x
  2. Step 2: Convert to fraction form
    11,382.94/15,698.64 = 7,402.60/x
  3. Step 3: Cross multiply
    11,382.94x = 15,698.64 × 7,402.60
  4. Step 4: Simplify right side
    11,382.94x = 116,210,752.46
  5. Step 5: Solve for x
    x = 116,210,752.46/11,382.94
  6. Step 6: Final answer
    x = 10,209.20

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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.