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Finding the Fourth Proportional to 14,389.84, 21,585.08 and 7,460.56

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Solution

The fourth proportional to 14,389.84, 21,585.08 and 7,460.56 is: 11,191.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,389.84 : 21,585.08 = 7,460.56 : x
  2. Step 2: Convert to fraction form
    14,389.84/21,585.08 = 7,460.56/x
  3. Step 3: Cross multiply
    14,389.84x = 21,585.08 × 7,460.56
  4. Step 4: Simplify right side
    14,389.84x = 161,036,784.44
  5. Step 5: Solve for x
    x = 161,036,784.44/14,389.84
  6. Step 6: Final answer
    x = 11,191.01

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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.