Home / 14,415.71-19,877.60-11,820.77

Finding the Fourth Proportional to 14,415.71, 19,877.60 and 11,820.77

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Solution

The fourth proportional to 14,415.71, 19,877.60 and 11,820.77 is: 16,299.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,415.71 : 19,877.60 = 11,820.77 : x
  2. Step 2: Convert to fraction form
    14,415.71/19,877.60 = 11,820.77/x
  3. Step 3: Cross multiply
    14,415.71x = 19,877.60 × 11,820.77
  4. Step 4: Simplify right side
    14,415.71x = 234,968,542.46
  5. Step 5: Solve for x
    x = 234,968,542.46/14,415.71
  6. Step 6: Final answer
    x = 16,299.48

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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.