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Finding the Fourth Proportional to 9,726, 14,587.92 and 3,485.76

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Solution

The fourth proportional to 9,726, 14,587.92 and 3,485.76 is: 5,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,726 : 14,587.92 = 3,485.76 : x
  2. Step 2: Convert to fraction form
    9,726/14,587.92 = 3,485.76/x
  3. Step 3: Cross multiply
    9,726x = 14,587.92 × 3,485.76
  4. Step 4: Simplify right side
    9,726x = 50,849,988.02
  5. Step 5: Solve for x
    x = 50,849,988.02/9,726
  6. Step 6: Final answer
    x = 5,228.25

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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.