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Finding the Fourth Proportional to 9,260.88, 13,946.40 and 8,347.20

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Solution

The fourth proportional to 9,260.88, 13,946.40 and 8,347.20 is: 12,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,260.88 : 13,946.40 = 8,347.20 : x
  2. Step 2: Convert to fraction form
    9,260.88/13,946.40 = 8,347.20/x
  3. Step 3: Cross multiply
    9,260.88x = 13,946.40 × 8,347.20
  4. Step 4: Simplify right side
    9,260.88x = 116,413,390.08
  5. Step 5: Solve for x
    x = 116,413,390.08/9,260.88
  6. Step 6: Final answer
    x = 12,570.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.