Home / 13,866.58-19,137.85-7,898.80

Finding the Fourth Proportional to 13,866.58, 19,137.85 and 7,898.80

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Solution

The fourth proportional to 13,866.58, 19,137.85 and 7,898.80 is: 10,901.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.58 : 19,137.85 = 7,898.80 : x
  2. Step 2: Convert to fraction form
    13,866.58/19,137.85 = 7,898.80/x
  3. Step 3: Cross multiply
    13,866.58x = 19,137.85 × 7,898.80
  4. Step 4: Simplify right side
    13,866.58x = 151,166,062.30
  5. Step 5: Solve for x
    x = 151,166,062.30/13,866.58
  6. Step 6: Final answer
    x = 10,901.47

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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.