Home / 12,310.28-18,465.45-4,915.34

Finding the Fourth Proportional to 12,310.28, 18,465.45 and 4,915.34

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Solution

The fourth proportional to 12,310.28, 18,465.45 and 4,915.34 is: 7,373.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.28 : 18,465.45 = 4,915.34 : x
  2. Step 2: Convert to fraction form
    12,310.28/18,465.45 = 4,915.34/x
  3. Step 3: Cross multiply
    12,310.28x = 18,465.45 × 4,915.34
  4. Step 4: Simplify right side
    12,310.28x = 90,763,965.00
  5. Step 5: Solve for x
    x = 90,763,965.00/12,310.28
  6. Step 6: Final answer
    x = 7,373.02

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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.