Home / 13,688.16-20,533.62-4,926.48

Finding the Fourth Proportional to 13,688.16, 20,533.62 and 4,926.48

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Solution

The fourth proportional to 13,688.16, 20,533.62 and 4,926.48 is: 7,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,688.16 : 20,533.62 = 4,926.48 : x
  2. Step 2: Convert to fraction form
    13,688.16/20,533.62 = 4,926.48/x
  3. Step 3: Cross multiply
    13,688.16x = 20,533.62 × 4,926.48
  4. Step 4: Simplify right side
    13,688.16x = 101,158,468.26
  5. Step 5: Solve for x
    x = 101,158,468.26/13,688.16
  6. Step 6: Final answer
    x = 7,390.22

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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.