Home / 9,390.02-12,957.53-5,140.15

Finding the Fourth Proportional to 9,390.02, 12,957.53 and 5,140.15

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Solution

The fourth proportional to 9,390.02, 12,957.53 and 5,140.15 is: 7,093.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,390.02 : 12,957.53 = 5,140.15 : x
  2. Step 2: Convert to fraction form
    9,390.02/12,957.53 = 5,140.15/x
  3. Step 3: Cross multiply
    9,390.02x = 12,957.53 × 5,140.15
  4. Step 4: Simplify right side
    9,390.02x = 66,603,589.73
  5. Step 5: Solve for x
    x = 66,603,589.73/9,390.02
  6. Step 6: Final answer
    x = 7,093.02

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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.