Home / 8,761.02-12,090.40-4,782.30

Finding the Fourth Proportional to 8,761.02, 12,090.40 and 4,782.30

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Solution

The fourth proportional to 8,761.02, 12,090.40 and 4,782.30 is: 6,599.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.02 : 12,090.40 = 4,782.30 : x
  2. Step 2: Convert to fraction form
    8,761.02/12,090.40 = 4,782.30/x
  3. Step 3: Cross multiply
    8,761.02x = 12,090.40 × 4,782.30
  4. Step 4: Simplify right side
    8,761.02x = 57,819,919.92
  5. Step 5: Solve for x
    x = 57,819,919.92/8,761.02
  6. Step 6: Final answer
    x = 6,599.68

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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.