Home / 10,005.50-13,807.79-5,529.44

Finding the Fourth Proportional to 10,005.50, 13,807.79 and 5,529.44

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Solution

The fourth proportional to 10,005.50, 13,807.79 and 5,529.44 is: 7,630.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.50 : 13,807.79 = 5,529.44 : x
  2. Step 2: Convert to fraction form
    10,005.50/13,807.79 = 5,529.44/x
  3. Step 3: Cross multiply
    10,005.50x = 13,807.79 × 5,529.44
  4. Step 4: Simplify right side
    10,005.50x = 76,349,373.95
  5. Step 5: Solve for x
    x = 76,349,373.95/10,005.50
  6. Step 6: Final answer
    x = 7,630.74

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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.