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Finding the Fourth Proportional to 9,886.90, 14,813.93 and 6,959.05

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Solution

The fourth proportional to 9,886.90, 14,813.93 and 6,959.05 is: 10,427.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886.90 : 14,813.93 = 6,959.05 : x
  2. Step 2: Convert to fraction form
    9,886.90/14,813.93 = 6,959.05/x
  3. Step 3: Cross multiply
    9,886.90x = 14,813.93 × 6,959.05
  4. Step 4: Simplify right side
    9,886.90x = 103,090,879.57
  5. Step 5: Solve for x
    x = 103,090,879.57/9,886.90
  6. Step 6: Final answer
    x = 10,427.02

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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.