Home / 9,386.79-14,078.15-2,811.21

Finding the Fourth Proportional to 9,386.79, 14,078.15 and 2,811.21

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Solution

The fourth proportional to 9,386.79, 14,078.15 and 2,811.21 is: 4,216.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,386.79 : 14,078.15 = 2,811.21 : x
  2. Step 2: Convert to fraction form
    9,386.79/14,078.15 = 2,811.21/x
  3. Step 3: Cross multiply
    9,386.79x = 14,078.15 × 2,811.21
  4. Step 4: Simplify right side
    9,386.79x = 39,576,622.01
  5. Step 5: Solve for x
    x = 39,576,622.01/9,386.79
  6. Step 6: Final answer
    x = 4,216.20

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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.