Home / 15,538.37-21,442.86-8,464.77

Finding the Fourth Proportional to 15,538.37, 21,442.86 and 8,464.77

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Solution

The fourth proportional to 15,538.37, 21,442.86 and 8,464.77 is: 11,681.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538.37 : 21,442.86 = 8,464.77 : x
  2. Step 2: Convert to fraction form
    15,538.37/21,442.86 = 8,464.77/x
  3. Step 3: Cross multiply
    15,538.37x = 21,442.86 × 8,464.77
  4. Step 4: Simplify right side
    15,538.37x = 181,508,878.04
  5. Step 5: Solve for x
    x = 181,508,878.04/15,538.37
  6. Step 6: Final answer
    x = 11,681.34

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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.