Home / 14,993.56-20,690.76-8,187.35

Finding the Fourth Proportional to 14,993.56, 20,690.76 and 8,187.35

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Solution

The fourth proportional to 14,993.56, 20,690.76 and 8,187.35 is: 11,298.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,993.56 : 20,690.76 = 8,187.35 : x
  2. Step 2: Convert to fraction form
    14,993.56/20,690.76 = 8,187.35/x
  3. Step 3: Cross multiply
    14,993.56x = 20,690.76 × 8,187.35
  4. Step 4: Simplify right side
    14,993.56x = 169,402,537.52
  5. Step 5: Solve for x
    x = 169,402,537.52/14,993.56
  6. Step 6: Final answer
    x = 11,298.36

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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.