Home / 14,951.08-20,628.76-9,639.50

Finding the Fourth Proportional to 14,951.08, 20,628.76 and 9,639.50

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Solution

The fourth proportional to 14,951.08, 20,628.76 and 9,639.50 is: 13,300.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,951.08 : 20,628.76 = 9,639.50 : x
  2. Step 2: Convert to fraction form
    14,951.08/20,628.76 = 9,639.50/x
  3. Step 3: Cross multiply
    14,951.08x = 20,628.76 × 9,639.50
  4. Step 4: Simplify right side
    14,951.08x = 198,850,883.82
  5. Step 5: Solve for x
    x = 198,850,883.82/14,951.08
  6. Step 6: Final answer
    x = 13,300.11

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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.