Home / 14,702.80-20,303.32-9,406.92

Finding the Fourth Proportional to 14,702.80, 20,303.32 and 9,406.92

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Solution

The fourth proportional to 14,702.80, 20,303.32 and 9,406.92 is: 12,990.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,702.80 : 20,303.32 = 9,406.92 : x
  2. Step 2: Convert to fraction form
    14,702.80/20,303.32 = 9,406.92/x
  3. Step 3: Cross multiply
    14,702.80x = 20,303.32 × 9,406.92
  4. Step 4: Simplify right side
    14,702.80x = 190,991,706.97
  5. Step 5: Solve for x
    x = 190,991,706.97/14,702.80
  6. Step 6: Final answer
    x = 12,990.16

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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.