Home / 15,547.92-21,455.35-8,832.66

Finding the Fourth Proportional to 15,547.92, 21,455.35 and 8,832.66

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Solution

The fourth proportional to 15,547.92, 21,455.35 and 8,832.66 is: 12,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,547.92 : 21,455.35 = 8,832.66 : x
  2. Step 2: Convert to fraction form
    15,547.92/21,455.35 = 8,832.66/x
  3. Step 3: Cross multiply
    15,547.92x = 21,455.35 × 8,832.66
  4. Step 4: Simplify right side
    15,547.92x = 189,507,811.73
  5. Step 5: Solve for x
    x = 189,507,811.73/15,547.92
  6. Step 6: Final answer
    x = 12,188.63

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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.