Home / 7,352.02-10,137.72-6,643.68

Finding the Fourth Proportional to 7,352.02, 10,137.72 and 6,643.68

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Solution

The fourth proportional to 7,352.02, 10,137.72 and 6,643.68 is: 9,160.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,352.02 : 10,137.72 = 6,643.68 : x
  2. Step 2: Convert to fraction form
    7,352.02/10,137.72 = 6,643.68/x
  3. Step 3: Cross multiply
    7,352.02x = 10,137.72 × 6,643.68
  4. Step 4: Simplify right side
    7,352.02x = 67,351,767.61
  5. Step 5: Solve for x
    x = 67,351,767.61/7,352.02
  6. Step 6: Final answer
    x = 9,160.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.