Home / 13,288.51-18,337.93-7,623.01

Finding the Fourth Proportional to 13,288.51, 18,337.93 and 7,623.01

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Solution

The fourth proportional to 13,288.51, 18,337.93 and 7,623.01 is: 10,519.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288.51 : 18,337.93 = 7,623.01 : x
  2. Step 2: Convert to fraction form
    13,288.51/18,337.93 = 7,623.01/x
  3. Step 3: Cross multiply
    13,288.51x = 18,337.93 × 7,623.01
  4. Step 4: Simplify right side
    13,288.51x = 139,790,223.77
  5. Step 5: Solve for x
    x = 139,790,223.77/13,288.51
  6. Step 6: Final answer
    x = 10,519.63

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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.