Home / 10,628.24-15,943.44-4,390.88

Finding the Fourth Proportional to 10,628.24, 15,943.44 and 4,390.88

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Solution

The fourth proportional to 10,628.24, 15,943.44 and 4,390.88 is: 6,586.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,628.24 : 15,943.44 = 4,390.88 : x
  2. Step 2: Convert to fraction form
    10,628.24/15,943.44 = 4,390.88/x
  3. Step 3: Cross multiply
    10,628.24x = 15,943.44 × 4,390.88
  4. Step 4: Simplify right side
    10,628.24x = 70,005,731.83
  5. Step 5: Solve for x
    x = 70,005,731.83/10,628.24
  6. Step 6: Final answer
    x = 6,586.77

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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.