Home / 14,720.54-20,313.92-8,347.74

Finding the Fourth Proportional to 14,720.54, 20,313.92 and 8,347.74

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Solution

The fourth proportional to 14,720.54, 20,313.92 and 8,347.74 is: 11,519.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,720.54 : 20,313.92 = 8,347.74 : x
  2. Step 2: Convert to fraction form
    14,720.54/20,313.92 = 8,347.74/x
  3. Step 3: Cross multiply
    14,720.54x = 20,313.92 × 8,347.74
  4. Step 4: Simplify right side
    14,720.54x = 169,575,322.54
  5. Step 5: Solve for x
    x = 169,575,322.54/14,720.54
  6. Step 6: Final answer
    x = 11,519.64

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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.