Home / 7,135.02-10,702.55-4,209.30

Finding the Fourth Proportional to 7,135.02, 10,702.55 and 4,209.30

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Solution

The fourth proportional to 7,135.02, 10,702.55 and 4,209.30 is: 6,313.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,135.02 : 10,702.55 = 4,209.30 : x
  2. Step 2: Convert to fraction form
    7,135.02/10,702.55 = 4,209.30/x
  3. Step 3: Cross multiply
    7,135.02x = 10,702.55 × 4,209.30
  4. Step 4: Simplify right side
    7,135.02x = 45,050,243.72
  5. Step 5: Solve for x
    x = 45,050,243.72/7,135.02
  6. Step 6: Final answer
    x = 6,313.96

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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.