Home / 13,871.15-19,137.50-7,898.58

Finding the Fourth Proportional to 13,871.15, 19,137.50 and 7,898.58

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Solution

The fourth proportional to 13,871.15, 19,137.50 and 7,898.58 is: 10,897.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.15 : 19,137.50 = 7,898.58 : x
  2. Step 2: Convert to fraction form
    13,871.15/19,137.50 = 7,898.58/x
  3. Step 3: Cross multiply
    13,871.15x = 19,137.50 × 7,898.58
  4. Step 4: Simplify right side
    13,871.15x = 151,159,035.26
  5. Step 5: Solve for x
    x = 151,159,035.26/13,871.15
  6. Step 6: Final answer
    x = 10,897.37

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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.