Home / 13,656.48-18,846.29-7,688.36

Finding the Fourth Proportional to 13,656.48, 18,846.29 and 7,688.36

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Solution

The fourth proportional to 13,656.48, 18,846.29 and 7,688.36 is: 10,610.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.48 : 18,846.29 = 7,688.36 : x
  2. Step 2: Convert to fraction form
    13,656.48/18,846.29 = 7,688.36/x
  3. Step 3: Cross multiply
    13,656.48x = 18,846.29 × 7,688.36
  4. Step 4: Simplify right side
    13,656.48x = 144,896,993.68
  5. Step 5: Solve for x
    x = 144,896,993.68/13,656.48
  6. Step 6: Final answer
    x = 10,610.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.