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Finding the Fourth Proportional to 14,709.93, 20,291.49 and 9,040.74

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Solution

The fourth proportional to 14,709.93, 20,291.49 and 9,040.74 is: 12,471.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,709.93 : 20,291.49 = 9,040.74 : x
  2. Step 2: Convert to fraction form
    14,709.93/20,291.49 = 9,040.74/x
  3. Step 3: Cross multiply
    14,709.93x = 20,291.49 × 9,040.74
  4. Step 4: Simplify right side
    14,709.93x = 183,450,085.30
  5. Step 5: Solve for x
    x = 183,450,085.30/14,709.93
  6. Step 6: Final answer
    x = 12,471.17

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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.