Home / 19,143.26-28,702.57-9,142.59

Finding the Fourth Proportional to 19,143.26, 28,702.57 and 9,142.59

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Solution

The fourth proportional to 19,143.26, 28,702.57 and 9,142.59 is: 13,708.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.26 : 28,702.57 = 9,142.59 : x
  2. Step 2: Convert to fraction form
    19,143.26/28,702.57 = 9,142.59/x
  3. Step 3: Cross multiply
    19,143.26x = 28,702.57 × 9,142.59
  4. Step 4: Simplify right side
    19,143.26x = 262,415,806.60
  5. Step 5: Solve for x
    x = 262,415,806.60/19,143.26
  6. Step 6: Final answer
    x = 13,708.00

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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.