Home / 11,384.45-15,700.30-7,135.94

Finding the Fourth Proportional to 11,384.45, 15,700.30 and 7,135.94

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Solution

The fourth proportional to 11,384.45, 15,700.30 and 7,135.94 is: 9,841.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,384.45 : 15,700.30 = 7,135.94 : x
  2. Step 2: Convert to fraction form
    11,384.45/15,700.30 = 7,135.94/x
  3. Step 3: Cross multiply
    11,384.45x = 15,700.30 × 7,135.94
  4. Step 4: Simplify right side
    11,384.45x = 112,036,398.78
  5. Step 5: Solve for x
    x = 112,036,398.78/11,384.45
  6. Step 6: Final answer
    x = 9,841.18

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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.