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Finding the Fourth Proportional to 14,295.54, 19,737.48 and 8,920.08

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Solution

The fourth proportional to 14,295.54, 19,737.48 and 8,920.08 is: 12,315.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,295.54 : 19,737.48 = 8,920.08 : x
  2. Step 2: Convert to fraction form
    14,295.54/19,737.48 = 8,920.08/x
  3. Step 3: Cross multiply
    14,295.54x = 19,737.48 × 8,920.08
  4. Step 4: Simplify right side
    14,295.54x = 176,059,900.60
  5. Step 5: Solve for x
    x = 176,059,900.60/14,295.54
  6. Step 6: Final answer
    x = 12,315.72

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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.