Home / 11,106.92-15,320.48-8,448.50

Finding the Fourth Proportional to 11,106.92, 15,320.48 and 8,448.50

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Solution

The fourth proportional to 11,106.92, 15,320.48 and 8,448.50 is: 11,653.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.92 : 15,320.48 = 8,448.50 : x
  2. Step 2: Convert to fraction form
    11,106.92/15,320.48 = 8,448.50/x
  3. Step 3: Cross multiply
    11,106.92x = 15,320.48 × 8,448.50
  4. Step 4: Simplify right side
    11,106.92x = 129,435,075.28
  5. Step 5: Solve for x
    x = 129,435,075.28/11,106.92
  6. Step 6: Final answer
    x = 11,653.55

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Double scale
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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.