Home / 12,533.16-18,783.54-5,129.10

Finding the Fourth Proportional to 12,533.16, 18,783.54 and 5,129.10

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Solution

The fourth proportional to 12,533.16, 18,783.54 and 5,129.10 is: 7,687.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,533.16 : 18,783.54 = 5,129.10 : x
  2. Step 2: Convert to fraction form
    12,533.16/18,783.54 = 5,129.10/x
  3. Step 3: Cross multiply
    12,533.16x = 18,783.54 × 5,129.10
  4. Step 4: Simplify right side
    12,533.16x = 96,342,655.01
  5. Step 5: Solve for x
    x = 96,342,655.01/12,533.16
  6. Step 6: Final answer
    x = 7,687.02

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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.