Home / 19,127.98-28,690.35-6,644.80

Finding the Fourth Proportional to 19,127.98, 28,690.35 and 6,644.80

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Solution

The fourth proportional to 19,127.98, 28,690.35 and 6,644.80 is: 9,966.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,127.98 : 28,690.35 = 6,644.80 : x
  2. Step 2: Convert to fraction form
    19,127.98/28,690.35 = 6,644.80/x
  3. Step 3: Cross multiply
    19,127.98x = 28,690.35 × 6,644.80
  4. Step 4: Simplify right side
    19,127.98x = 190,641,637.68
  5. Step 5: Solve for x
    x = 190,641,637.68/19,127.98
  6. Step 6: Final answer
    x = 9,966.64

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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.