Home / 14,790.86-20,412.21-8,077.11

Finding the Fourth Proportional to 14,790.86, 20,412.21 and 8,077.11

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Solution

The fourth proportional to 14,790.86, 20,412.21 and 8,077.11 is: 11,146.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,790.86 : 20,412.21 = 8,077.11 : x
  2. Step 2: Convert to fraction form
    14,790.86/20,412.21 = 8,077.11/x
  3. Step 3: Cross multiply
    14,790.86x = 20,412.21 × 8,077.11
  4. Step 4: Simplify right side
    14,790.86x = 164,871,588.97
  5. Step 5: Solve for x
    x = 164,871,588.97/14,790.86
  6. Step 6: Final answer
    x = 11,146.86

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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.