Home / 12,740.02-19,090.53-5,340.44

Finding the Fourth Proportional to 12,740.02, 19,090.53 and 5,340.44

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Solution

The fourth proportional to 12,740.02, 19,090.53 and 5,340.44 is: 8,002.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,740.02 : 19,090.53 = 5,340.44 : x
  2. Step 2: Convert to fraction form
    12,740.02/19,090.53 = 5,340.44/x
  3. Step 3: Cross multiply
    12,740.02x = 19,090.53 × 5,340.44
  4. Step 4: Simplify right side
    12,740.02x = 101,951,877.76
  5. Step 5: Solve for x
    x = 101,951,877.76/12,740.02
  6. Step 6: Final answer
    x = 8,002.49

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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.