Home / 15,655.05-21,604.04-8,484.98

Finding the Fourth Proportional to 15,655.05, 21,604.04 and 8,484.98

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Solution

The fourth proportional to 15,655.05, 21,604.04 and 8,484.98 is: 11,709.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,655.05 : 21,604.04 = 8,484.98 : x
  2. Step 2: Convert to fraction form
    15,655.05/21,604.04 = 8,484.98/x
  3. Step 3: Cross multiply
    15,655.05x = 21,604.04 × 8,484.98
  4. Step 4: Simplify right side
    15,655.05x = 183,309,696.87
  5. Step 5: Solve for x
    x = 183,309,696.87/15,655.05
  6. Step 6: Final answer
    x = 11,709.30

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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.