Home / 9,990.69-14,983.20-2,970.42

Finding the Fourth Proportional to 9,990.69, 14,983.20 and 2,970.42

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Solution

The fourth proportional to 9,990.69, 14,983.20 and 2,970.42 is: 4,454.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.69 : 14,983.20 = 2,970.42 : x
  2. Step 2: Convert to fraction form
    9,990.69/14,983.20 = 2,970.42/x
  3. Step 3: Cross multiply
    9,990.69x = 14,983.20 × 2,970.42
  4. Step 4: Simplify right side
    9,990.69x = 44,506,396.94
  5. Step 5: Solve for x
    x = 44,506,396.94/9,990.69
  6. Step 6: Final answer
    x = 4,454.79

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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.