Home / 14,138.02-21,207.06-8,947.54

Finding the Fourth Proportional to 14,138.02, 21,207.06 and 8,947.54

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Solution

The fourth proportional to 14,138.02, 21,207.06 and 8,947.54 is: 13,421.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,138.02 : 21,207.06 = 8,947.54 : x
  2. Step 2: Convert to fraction form
    14,138.02/21,207.06 = 8,947.54/x
  3. Step 3: Cross multiply
    14,138.02x = 21,207.06 × 8,947.54
  4. Step 4: Simplify right side
    14,138.02x = 189,751,017.63
  5. Step 5: Solve for x
    x = 189,751,017.63/14,138.02
  6. Step 6: Final answer
    x = 13,421.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.