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Finding the Fourth Proportional to 8,906.04, 13,359.03 and 8,364.75

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Solution

The fourth proportional to 8,906.04, 13,359.03 and 8,364.75 is: 12,547.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,906.04 : 13,359.03 = 8,364.75 : x
  2. Step 2: Convert to fraction form
    8,906.04/13,359.03 = 8,364.75/x
  3. Step 3: Cross multiply
    8,906.04x = 13,359.03 × 8,364.75
  4. Step 4: Simplify right side
    8,906.04x = 111,744,946.19
  5. Step 5: Solve for x
    x = 111,744,946.19/8,906.04
  6. Step 6: Final answer
    x = 12,547.10

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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.