Home / 9,988.20-14,982.30-4,143.24

Finding the Fourth Proportional to 9,988.20, 14,982.30 and 4,143.24

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Solution

The fourth proportional to 9,988.20, 14,982.30 and 4,143.24 is: 6,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.20 : 14,982.30 = 4,143.24 : x
  2. Step 2: Convert to fraction form
    9,988.20/14,982.30 = 4,143.24/x
  3. Step 3: Cross multiply
    9,988.20x = 14,982.30 × 4,143.24
  4. Step 4: Simplify right side
    9,988.20x = 62,075,264.65
  5. Step 5: Solve for x
    x = 62,075,264.65/9,988.20
  6. Step 6: Final answer
    x = 6,214.86

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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.