Home / 12,615.03-18,928.01-6,764.81

Finding the Fourth Proportional to 12,615.03, 18,928.01 and 6,764.81

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Solution

The fourth proportional to 12,615.03, 18,928.01 and 6,764.81 is: 10,150.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615.03 : 18,928.01 = 6,764.81 : x
  2. Step 2: Convert to fraction form
    12,615.03/18,928.01 = 6,764.81/x
  3. Step 3: Cross multiply
    12,615.03x = 18,928.01 × 6,764.81
  4. Step 4: Simplify right side
    12,615.03x = 128,044,262.86
  5. Step 5: Solve for x
    x = 128,044,262.86/12,615.03
  6. Step 6: Final answer
    x = 10,150.14

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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.