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Finding the Fourth Proportional to 14,637.63, 21,968.70 and 7,620.06

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Solution

The fourth proportional to 14,637.63, 21,968.70 and 7,620.06 is: 11,436.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,637.63 : 21,968.70 = 7,620.06 : x
  2. Step 2: Convert to fraction form
    14,637.63/21,968.70 = 7,620.06/x
  3. Step 3: Cross multiply
    14,637.63x = 21,968.70 × 7,620.06
  4. Step 4: Simplify right side
    14,637.63x = 167,402,812.12
  5. Step 5: Solve for x
    x = 167,402,812.12/14,637.63
  6. Step 6: Final answer
    x = 11,436.47

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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.