Home / 9,661.02-14,488.86-3,420.21

Finding the Fourth Proportional to 9,661.02, 14,488.86 and 3,420.21

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Solution

The fourth proportional to 9,661.02, 14,488.86 and 3,420.21 is: 5,129.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,661.02 : 14,488.86 = 3,420.21 : x
  2. Step 2: Convert to fraction form
    9,661.02/14,488.86 = 3,420.21/x
  3. Step 3: Cross multiply
    9,661.02x = 14,488.86 × 3,420.21
  4. Step 4: Simplify right side
    9,661.02x = 49,554,943.86
  5. Step 5: Solve for x
    x = 49,554,943.86/9,661.02
  6. Step 6: Final answer
    x = 5,129.37

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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.