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Finding the Fourth Proportional to 17,888.22, 26,802.48 and 7,878.06

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Solution

The fourth proportional to 17,888.22, 26,802.48 and 7,878.06 is: 11,803.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,888.22 : 26,802.48 = 7,878.06 : x
  2. Step 2: Convert to fraction form
    17,888.22/26,802.48 = 7,878.06/x
  3. Step 3: Cross multiply
    17,888.22x = 26,802.48 × 7,878.06
  4. Step 4: Simplify right side
    17,888.22x = 211,151,564.05
  5. Step 5: Solve for x
    x = 211,151,564.05/17,888.22
  6. Step 6: Final answer
    x = 11,803.95

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1.5x scale

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.