Home / 12,812.31-19,227.02-4,492.32

Finding the Fourth Proportional to 12,812.31, 19,227.02 and 4,492.32

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Solution

The fourth proportional to 12,812.31, 19,227.02 and 4,492.32 is: 6,741.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812.31 : 19,227.02 = 4,492.32 : x
  2. Step 2: Convert to fraction form
    12,812.31/19,227.02 = 4,492.32/x
  3. Step 3: Cross multiply
    12,812.31x = 19,227.02 × 4,492.32
  4. Step 4: Simplify right side
    12,812.31x = 86,373,904.02
  5. Step 5: Solve for x
    x = 86,373,904.02/12,812.31
  6. Step 6: Final answer
    x = 6,741.48

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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.