Home / 12,800.02-19,181.80-4,999.72

Finding the Fourth Proportional to 12,800.02, 19,181.80 and 4,999.72

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Solution

The fourth proportional to 12,800.02, 19,181.80 and 4,999.72 is: 7,492.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,800.02 : 19,181.80 = 4,999.72 : x
  2. Step 2: Convert to fraction form
    12,800.02/19,181.80 = 4,999.72/x
  3. Step 3: Cross multiply
    12,800.02x = 19,181.80 × 4,999.72
  4. Step 4: Simplify right side
    12,800.02x = 95,903,629.10
  5. Step 5: Solve for x
    x = 95,903,629.10/12,800.02
  6. Step 6: Final answer
    x = 7,492.46

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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.