Home / 14,947.08-20,626.02-8,979

Finding the Fourth Proportional to 14,947.08, 20,626.02 and 8,979

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Solution

The fourth proportional to 14,947.08, 20,626.02 and 8,979 is: 12,390.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,947.08 : 20,626.02 = 8,979 : x
  2. Step 2: Convert to fraction form
    14,947.08/20,626.02 = 8,979/x
  3. Step 3: Cross multiply
    14,947.08x = 20,626.02 × 8,979
  4. Step 4: Simplify right side
    14,947.08x = 185,201,033.58
  5. Step 5: Solve for x
    x = 185,201,033.58/14,947.08
  6. Step 6: Final answer
    x = 12,390.45

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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.