Home / 10,005.56-13,807.48-5,529.36

Finding the Fourth Proportional to 10,005.56, 13,807.48 and 5,529.36

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Solution

The fourth proportional to 10,005.56, 13,807.48 and 5,529.36 is: 7,630.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,005.56 : 13,807.48 = 5,529.36 : x
  2. Step 2: Convert to fraction form
    10,005.56/13,807.48 = 5,529.36/x
  3. Step 3: Cross multiply
    10,005.56x = 13,807.48 × 5,529.36
  4. Step 4: Simplify right side
    10,005.56x = 76,346,527.61
  5. Step 5: Solve for x
    x = 76,346,527.61/10,005.56
  6. Step 6: Final answer
    x = 7,630.41

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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.