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Finding the Fourth Proportional to 15,626.09, 21,564 and 8,552.51

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Solution

The fourth proportional to 15,626.09, 21,564 and 8,552.51 is: 11,802.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,626.09 : 21,564 = 8,552.51 : x
  2. Step 2: Convert to fraction form
    15,626.09/21,564 = 8,552.51/x
  3. Step 3: Cross multiply
    15,626.09x = 21,564 × 8,552.51
  4. Step 4: Simplify right side
    15,626.09x = 184,426,379.55
  5. Step 5: Solve for x
    x = 184,426,379.55/15,626.09
  6. Step 6: Final answer
    x = 11,802.46

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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.