Home / 14,945.60-20,630.12-9,284.70

Finding the Fourth Proportional to 14,945.60, 20,630.12 and 9,284.70

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Solution

The fourth proportional to 14,945.60, 20,630.12 and 9,284.70 is: 12,816.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,945.60 : 20,630.12 = 9,284.70 : x
  2. Step 2: Convert to fraction form
    14,945.60/20,630.12 = 9,284.70/x
  3. Step 3: Cross multiply
    14,945.60x = 20,630.12 × 9,284.70
  4. Step 4: Simplify right side
    14,945.60x = 191,544,428.74
  5. Step 5: Solve for x
    x = 191,544,428.74/14,945.60
  6. Step 6: Final answer
    x = 12,816.11

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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.