Home / 9,620.02-13,271.88-6,478.30

Finding the Fourth Proportional to 9,620.02, 13,271.88 and 6,478.30

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Solution

The fourth proportional to 9,620.02, 13,271.88 and 6,478.30 is: 8,937.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,620.02 : 13,271.88 = 6,478.30 : x
  2. Step 2: Convert to fraction form
    9,620.02/13,271.88 = 6,478.30/x
  3. Step 3: Cross multiply
    9,620.02x = 13,271.88 × 6,478.30
  4. Step 4: Simplify right side
    9,620.02x = 85,979,220.20
  5. Step 5: Solve for x
    x = 85,979,220.20/9,620.02
  6. Step 6: Final answer
    x = 8,937.53

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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.