Home / 12,887.07-19,330.59-3,653.07

Finding the Fourth Proportional to 12,887.07, 19,330.59 and 3,653.07

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Solution

The fourth proportional to 12,887.07, 19,330.59 and 3,653.07 is: 5,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.07 : 19,330.59 = 3,653.07 : x
  2. Step 2: Convert to fraction form
    12,887.07/19,330.59 = 3,653.07/x
  3. Step 3: Cross multiply
    12,887.07x = 19,330.59 × 3,653.07
  4. Step 4: Simplify right side
    12,887.07x = 70,615,998.41
  5. Step 5: Solve for x
    x = 70,615,998.41/12,887.07
  6. Step 6: Final answer
    x = 5,479.60

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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.