Home / 15,868.14-21,898.50-8,795.22

Finding the Fourth Proportional to 15,868.14, 21,898.50 and 8,795.22

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Solution

The fourth proportional to 15,868.14, 21,898.50 and 8,795.22 is: 12,137.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,868.14 : 21,898.50 = 8,795.22 : x
  2. Step 2: Convert to fraction form
    15,868.14/21,898.50 = 8,795.22/x
  3. Step 3: Cross multiply
    15,868.14x = 21,898.50 × 8,795.22
  4. Step 4: Simplify right side
    15,868.14x = 192,602,125.17
  5. Step 5: Solve for x
    x = 192,602,125.17/15,868.14
  6. Step 6: Final answer
    x = 12,137.66

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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.