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Finding the Fourth Proportional to 9,876.68, 14,826.60 and 7,798.08

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Solution

The fourth proportional to 9,876.68, 14,826.60 and 7,798.08 is: 11,706.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,876.68 : 14,826.60 = 7,798.08 : x
  2. Step 2: Convert to fraction form
    9,876.68/14,826.60 = 7,798.08/x
  3. Step 3: Cross multiply
    9,876.68x = 14,826.60 × 7,798.08
  4. Step 4: Simplify right side
    9,876.68x = 115,619,012.93
  5. Step 5: Solve for x
    x = 115,619,012.93/9,876.68
  6. Step 6: Final answer
    x = 11,706.26

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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.