Home / 10,205.39-15,284.57-7,376.32

Finding the Fourth Proportional to 10,205.39, 15,284.57 and 7,376.32

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Solution

The fourth proportional to 10,205.39, 15,284.57 and 7,376.32 is: 11,047.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,205.39 : 15,284.57 = 7,376.32 : x
  2. Step 2: Convert to fraction form
    10,205.39/15,284.57 = 7,376.32/x
  3. Step 3: Cross multiply
    10,205.39x = 15,284.57 × 7,376.32
  4. Step 4: Simplify right side
    10,205.39x = 112,743,775.63
  5. Step 5: Solve for x
    x = 112,743,775.63/10,205.39
  6. Step 6: Final answer
    x = 11,047.47

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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.