Home / 13,129.24-19,688.10-4,807.10

Finding the Fourth Proportional to 13,129.24, 19,688.10 and 4,807.10

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Solution

The fourth proportional to 13,129.24, 19,688.10 and 4,807.10 is: 7,208.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,129.24 : 19,688.10 = 4,807.10 : x
  2. Step 2: Convert to fraction form
    13,129.24/19,688.10 = 4,807.10/x
  3. Step 3: Cross multiply
    13,129.24x = 19,688.10 × 4,807.10
  4. Step 4: Simplify right side
    13,129.24x = 94,642,665.51
  5. Step 5: Solve for x
    x = 94,642,665.51/13,129.24
  6. Step 6: Final answer
    x = 7,208.54

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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.