Home / 15,205.76-20,988.96-9,624.32

Finding the Fourth Proportional to 15,205.76, 20,988.96 and 9,624.32

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Solution

The fourth proportional to 15,205.76, 20,988.96 and 9,624.32 is: 13,284.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,205.76 : 20,988.96 = 9,624.32 : x
  2. Step 2: Convert to fraction form
    15,205.76/20,988.96 = 9,624.32/x
  3. Step 3: Cross multiply
    15,205.76x = 20,988.96 × 9,624.32
  4. Step 4: Simplify right side
    15,205.76x = 202,004,467.51
  5. Step 5: Solve for x
    x = 202,004,467.51/15,205.76
  6. Step 6: Final answer
    x = 13,284.73

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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.