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Finding the Fourth Proportional to 8,547.56, 12,806.76 and 6,904.88

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Solution

The fourth proportional to 8,547.56, 12,806.76 and 6,904.88 is: 10,345.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,547.56 : 12,806.76 = 6,904.88 : x
  2. Step 2: Convert to fraction form
    8,547.56/12,806.76 = 6,904.88/x
  3. Step 3: Cross multiply
    8,547.56x = 12,806.76 × 6,904.88
  4. Step 4: Simplify right side
    8,547.56x = 88,429,140.99
  5. Step 5: Solve for x
    x = 88,429,140.99/8,547.56
  6. Step 6: Final answer
    x = 10,345.54

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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.