Home / 13,631.79-20,447.69-7,514.67

Finding the Fourth Proportional to 13,631.79, 20,447.69 and 7,514.67

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Solution

The fourth proportional to 13,631.79, 20,447.69 and 7,514.67 is: 11,272.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,631.79 : 20,447.69 = 7,514.67 : x
  2. Step 2: Convert to fraction form
    13,631.79/20,447.69 = 7,514.67/x
  3. Step 3: Cross multiply
    13,631.79x = 20,447.69 × 7,514.67
  4. Step 4: Simplify right side
    13,631.79x = 153,657,642.61
  5. Step 5: Solve for x
    x = 153,657,642.61/13,631.79
  6. Step 6: Final answer
    x = 11,272.01

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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.