Home / 19,966.02-29,960.47-8,117.60

Finding the Fourth Proportional to 19,966.02, 29,960.47 and 8,117.60

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Solution

The fourth proportional to 19,966.02, 29,960.47 and 8,117.60 is: 12,181.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,966.02 : 29,960.47 = 8,117.60 : x
  2. Step 2: Convert to fraction form
    19,966.02/29,960.47 = 8,117.60/x
  3. Step 3: Cross multiply
    19,966.02x = 29,960.47 × 8,117.60
  4. Step 4: Simplify right side
    19,966.02x = 243,207,211.54
  5. Step 5: Solve for x
    x = 243,207,211.54/19,966.02
  6. Step 6: Final answer
    x = 12,181.06

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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.