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Finding the Fourth Proportional to 14,521, 21,794.87 and 8,985.16

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Solution

The fourth proportional to 14,521, 21,794.87 and 8,985.16 is: 13,486.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,521 : 21,794.87 = 8,985.16 : x
  2. Step 2: Convert to fraction form
    14,521/21,794.87 = 8,985.16/x
  3. Step 3: Cross multiply
    14,521x = 21,794.87 × 8,985.16
  4. Step 4: Simplify right side
    14,521x = 195,830,394.13
  5. Step 5: Solve for x
    x = 195,830,394.13/14,521
  6. Step 6: Final answer
    x = 13,486.01

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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.