Home / 7,664.24-10,575.36-4,477.76

Finding the Fourth Proportional to 7,664.24, 10,575.36 and 4,477.76

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Solution

The fourth proportional to 7,664.24, 10,575.36 and 4,477.76 is: 6,178.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,664.24 : 10,575.36 = 4,477.76 : x
  2. Step 2: Convert to fraction form
    7,664.24/10,575.36 = 4,477.76/x
  3. Step 3: Cross multiply
    7,664.24x = 10,575.36 × 4,477.76
  4. Step 4: Simplify right side
    7,664.24x = 47,353,923.99
  5. Step 5: Solve for x
    x = 47,353,923.99/7,664.24
  6. Step 6: Final answer
    x = 6,178.55

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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.