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Finding the Fourth Proportional to 14,506.79, 20,019.56 and 8,840.79

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Solution

The fourth proportional to 14,506.79, 20,019.56 and 8,840.79 is: 12,200.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,506.79 : 20,019.56 = 8,840.79 : x
  2. Step 2: Convert to fraction form
    14,506.79/20,019.56 = 8,840.79/x
  3. Step 3: Cross multiply
    14,506.79x = 20,019.56 × 8,840.79
  4. Step 4: Simplify right side
    14,506.79x = 176,988,681.65
  5. Step 5: Solve for x
    x = 176,988,681.65/14,506.79
  6. Step 6: Final answer
    x = 12,200.41

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1.5x scale

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.