Home / 15,538.44-21,443.04-8,464.87

Finding the Fourth Proportional to 15,538.44, 21,443.04 and 8,464.87

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Solution

The fourth proportional to 15,538.44, 21,443.04 and 8,464.87 is: 11,681.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538.44 : 21,443.04 = 8,464.87 : x
  2. Step 2: Convert to fraction form
    15,538.44/21,443.04 = 8,464.87/x
  3. Step 3: Cross multiply
    15,538.44x = 21,443.04 × 8,464.87
  4. Step 4: Simplify right side
    15,538.44x = 181,512,572.81
  5. Step 5: Solve for x
    x = 181,512,572.81/15,538.44
  6. Step 6: Final answer
    x = 11,681.52

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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.