Home / 13,877.77-20,829.41-9,984.91

Finding the Fourth Proportional to 13,877.77, 20,829.41 and 9,984.91

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Solution

The fourth proportional to 13,877.77, 20,829.41 and 9,984.91 is: 14,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.77 : 20,829.41 = 9,984.91 : x
  2. Step 2: Convert to fraction form
    13,877.77/20,829.41 = 9,984.91/x
  3. Step 3: Cross multiply
    13,877.77x = 20,829.41 × 9,984.91
  4. Step 4: Simplify right side
    13,877.77x = 207,979,630.13
  5. Step 5: Solve for x
    x = 207,979,630.13/13,877.77
  6. Step 6: Final answer
    x = 14,986.54

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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.