Home / 9,927.20-14,890.80-3,690.20

Finding the Fourth Proportional to 9,927.20, 14,890.80 and 3,690.20

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Solution

The fourth proportional to 9,927.20, 14,890.80 and 3,690.20 is: 5,535.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,927.20 : 14,890.80 = 3,690.20 : x
  2. Step 2: Convert to fraction form
    9,927.20/14,890.80 = 3,690.20/x
  3. Step 3: Cross multiply
    9,927.20x = 14,890.80 × 3,690.20
  4. Step 4: Simplify right side
    9,927.20x = 54,950,030.16
  5. Step 5: Solve for x
    x = 54,950,030.16/9,927.20
  6. Step 6: Final answer
    x = 5,535.30

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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.