Home / 13,718.16-20,564.76-4,946.88

Finding the Fourth Proportional to 13,718.16, 20,564.76 and 4,946.88

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Solution

The fourth proportional to 13,718.16, 20,564.76 and 4,946.88 is: 7,415.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.16 : 20,564.76 = 4,946.88 : x
  2. Step 2: Convert to fraction form
    13,718.16/20,564.76 = 4,946.88/x
  3. Step 3: Cross multiply
    13,718.16x = 20,564.76 × 4,946.88
  4. Step 4: Simplify right side
    13,718.16x = 101,731,399.95
  5. Step 5: Solve for x
    x = 101,731,399.95/13,718.16
  6. Step 6: Final answer
    x = 7,415.82

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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.