Home / 12,114.79-18,177.36-4,724.46

Finding the Fourth Proportional to 12,114.79, 18,177.36 and 4,724.46

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Solution

The fourth proportional to 12,114.79, 18,177.36 and 4,724.46 is: 7,088.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,114.79 : 18,177.36 = 4,724.46 : x
  2. Step 2: Convert to fraction form
    12,114.79/18,177.36 = 4,724.46/x
  3. Step 3: Cross multiply
    12,114.79x = 18,177.36 × 4,724.46
  4. Step 4: Simplify right side
    12,114.79x = 85,878,210.23
  5. Step 5: Solve for x
    x = 85,878,210.23/12,114.79
  6. Step 6: Final answer
    x = 7,088.71

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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.