Home / 11,007.80-16,490.10-6,612.28

Finding the Fourth Proportional to 11,007.80, 16,490.10 and 6,612.28

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Solution

The fourth proportional to 11,007.80, 16,490.10 and 6,612.28 is: 9,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,007.80 : 16,490.10 = 6,612.28 : x
  2. Step 2: Convert to fraction form
    11,007.80/16,490.10 = 6,612.28/x
  3. Step 3: Cross multiply
    11,007.80x = 16,490.10 × 6,612.28
  4. Step 4: Simplify right side
    11,007.80x = 109,037,158.43
  5. Step 5: Solve for x
    x = 109,037,158.43/11,007.80
  6. Step 6: Final answer
    x = 9,905.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.