Home / 14,947.37-20,635.65-8,980.50

Finding the Fourth Proportional to 14,947.37, 20,635.65 and 8,980.50

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Solution

The fourth proportional to 14,947.37, 20,635.65 and 8,980.50 is: 12,398.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,947.37 : 20,635.65 = 8,980.50 : x
  2. Step 2: Convert to fraction form
    14,947.37/20,635.65 = 8,980.50/x
  3. Step 3: Cross multiply
    14,947.37x = 20,635.65 × 8,980.50
  4. Step 4: Simplify right side
    14,947.37x = 185,318,454.83
  5. Step 5: Solve for x
    x = 185,318,454.83/14,947.37
  6. Step 6: Final answer
    x = 12,398.07

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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.