Home / 8,777.24-12,118.40-5,424.98

Finding the Fourth Proportional to 8,777.24, 12,118.40 and 5,424.98

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Solution

The fourth proportional to 8,777.24, 12,118.40 and 5,424.98 is: 7,490.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.24 : 12,118.40 = 5,424.98 : x
  2. Step 2: Convert to fraction form
    8,777.24/12,118.40 = 5,424.98/x
  3. Step 3: Cross multiply
    8,777.24x = 12,118.40 × 5,424.98
  4. Step 4: Simplify right side
    8,777.24x = 65,742,121.49
  5. Step 5: Solve for x
    x = 65,742,121.49/8,777.24
  6. Step 6: Final answer
    x = 7,490.07

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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.