Home / 14,702.72-20,284.40-9,399.92

Finding the Fourth Proportional to 14,702.72, 20,284.40 and 9,399.92

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Solution

The fourth proportional to 14,702.72, 20,284.40 and 9,399.92 is: 12,968.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,702.72 : 20,284.40 = 9,399.92 : x
  2. Step 2: Convert to fraction form
    14,702.72/20,284.40 = 9,399.92/x
  3. Step 3: Cross multiply
    14,702.72x = 20,284.40 × 9,399.92
  4. Step 4: Simplify right side
    14,702.72x = 190,671,737.25
  5. Step 5: Solve for x
    x = 190,671,737.25/14,702.72
  6. Step 6: Final answer
    x = 12,968.47

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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.