Home / 9,411.21-14,121.42-6,655.59

Finding the Fourth Proportional to 9,411.21, 14,121.42 and 6,655.59

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Solution

The fourth proportional to 9,411.21, 14,121.42 and 6,655.59 is: 9,986.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,411.21 : 14,121.42 = 6,655.59 : x
  2. Step 2: Convert to fraction form
    9,411.21/14,121.42 = 6,655.59/x
  3. Step 3: Cross multiply
    9,411.21x = 14,121.42 × 6,655.59
  4. Step 4: Simplify right side
    9,411.21x = 93,986,381.74
  5. Step 5: Solve for x
    x = 93,986,381.74/9,411.21
  6. Step 6: Final answer
    x = 9,986.64

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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.