Home / 9,986.10-14,980.95-4,143.30

Finding the Fourth Proportional to 9,986.10, 14,980.95 and 4,143.30

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Solution

The fourth proportional to 9,986.10, 14,980.95 and 4,143.30 is: 6,215.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.10 : 14,980.95 = 4,143.30 : x
  2. Step 2: Convert to fraction form
    9,986.10/14,980.95 = 4,143.30/x
  3. Step 3: Cross multiply
    9,986.10x = 14,980.95 × 4,143.30
  4. Step 4: Simplify right side
    9,986.10x = 62,070,570.14
  5. Step 5: Solve for x
    x = 62,070,570.14/9,986.10
  6. Step 6: Final answer
    x = 6,215.70

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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.