Home / 15,911.45-23,866.95-5,379.22

Finding the Fourth Proportional to 15,911.45, 23,866.95 and 5,379.22

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Solution

The fourth proportional to 15,911.45, 23,866.95 and 5,379.22 is: 8,068.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,911.45 : 23,866.95 = 5,379.22 : x
  2. Step 2: Convert to fraction form
    15,911.45/23,866.95 = 5,379.22/x
  3. Step 3: Cross multiply
    15,911.45x = 23,866.95 × 5,379.22
  4. Step 4: Simplify right side
    15,911.45x = 128,385,574.78
  5. Step 5: Solve for x
    x = 128,385,574.78/15,911.45
  6. Step 6: Final answer
    x = 8,068.75

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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.