Home / 12,312.28-18,468.45-4,917.34

Finding the Fourth Proportional to 12,312.28, 18,468.45 and 4,917.34

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Solution

The fourth proportional to 12,312.28, 18,468.45 and 4,917.34 is: 7,376.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312.28 : 18,468.45 = 4,917.34 : x
  2. Step 2: Convert to fraction form
    12,312.28/18,468.45 = 4,917.34/x
  3. Step 3: Cross multiply
    12,312.28x = 18,468.45 × 4,917.34
  4. Step 4: Simplify right side
    12,312.28x = 90,815,647.92
  5. Step 5: Solve for x
    x = 90,815,647.92/12,312.28
  6. Step 6: Final answer
    x = 7,376.02

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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.