Home / 15,870.10-23,795.58-8,379.63

Finding the Fourth Proportional to 15,870.10, 23,795.58 and 8,379.63

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Solution

The fourth proportional to 15,870.10, 23,795.58 and 8,379.63 is: 12,564.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870.10 : 23,795.58 = 8,379.63 : x
  2. Step 2: Convert to fraction form
    15,870.10/23,795.58 = 8,379.63/x
  3. Step 3: Cross multiply
    15,870.10x = 23,795.58 × 8,379.63
  4. Step 4: Simplify right side
    15,870.10x = 199,398,156.04
  5. Step 5: Solve for x
    x = 199,398,156.04/15,870.10
  6. Step 6: Final answer
    x = 12,564.39

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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.