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Finding the Fourth Proportional to 19,246.72, 28,870.08 and 6,934.40

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Solution

The fourth proportional to 19,246.72, 28,870.08 and 6,934.40 is: 10,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,246.72 : 28,870.08 = 6,934.40 : x
  2. Step 2: Convert to fraction form
    19,246.72/28,870.08 = 6,934.40/x
  3. Step 3: Cross multiply
    19,246.72x = 28,870.08 × 6,934.40
  4. Step 4: Simplify right side
    19,246.72x = 200,196,682.75
  5. Step 5: Solve for x
    x = 200,196,682.75/19,246.72
  6. Step 6: Final answer
    x = 10,401.60

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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.