Home / 15,729.48-23,585.68-7,814.64

Finding the Fourth Proportional to 15,729.48, 23,585.68 and 7,814.64

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Solution

The fourth proportional to 15,729.48, 23,585.68 and 7,814.64 is: 11,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,729.48 : 23,585.68 = 7,814.64 : x
  2. Step 2: Convert to fraction form
    15,729.48/23,585.68 = 7,814.64/x
  3. Step 3: Cross multiply
    15,729.48x = 23,585.68 × 7,814.64
  4. Step 4: Simplify right side
    15,729.48x = 184,313,598.36
  5. Step 5: Solve for x
    x = 184,313,598.36/15,729.48
  6. Step 6: Final answer
    x = 11,717.72

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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.