Home / 15,552.46-21,461.96-8,478.88

Finding the Fourth Proportional to 15,552.46, 21,461.96 and 8,478.88

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Solution

The fourth proportional to 15,552.46, 21,461.96 and 8,478.88 is: 11,700.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,552.46 : 21,461.96 = 8,478.88 : x
  2. Step 2: Convert to fraction form
    15,552.46/21,461.96 = 8,478.88/x
  3. Step 3: Cross multiply
    15,552.46x = 21,461.96 × 8,478.88
  4. Step 4: Simplify right side
    15,552.46x = 181,973,383.40
  5. Step 5: Solve for x
    x = 181,973,383.40/15,552.46
  6. Step 6: Final answer
    x = 11,700.62

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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.