Home / 12,928.94-17,848.72-8,702.24

Finding the Fourth Proportional to 12,928.94, 17,848.72 and 8,702.24

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Solution

The fourth proportional to 12,928.94, 17,848.72 and 8,702.24 is: 12,013.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.94 : 17,848.72 = 8,702.24 : x
  2. Step 2: Convert to fraction form
    12,928.94/17,848.72 = 8,702.24/x
  3. Step 3: Cross multiply
    12,928.94x = 17,848.72 × 8,702.24
  4. Step 4: Simplify right side
    12,928.94x = 155,323,845.13
  5. Step 5: Solve for x
    x = 155,323,845.13/12,928.94
  6. Step 6: Final answer
    x = 12,013.66

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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.