Home / 11,407.81-15,628.43-10,981.39

Finding the Fourth Proportional to 11,407.81, 15,628.43 and 10,981.39

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Solution

The fourth proportional to 11,407.81, 15,628.43 and 10,981.39 is: 15,044.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,407.81 : 15,628.43 = 10,981.39 : x
  2. Step 2: Convert to fraction form
    11,407.81/15,628.43 = 10,981.39/x
  3. Step 3: Cross multiply
    11,407.81x = 15,628.43 × 10,981.39
  4. Step 4: Simplify right side
    11,407.81x = 171,621,884.92
  5. Step 5: Solve for x
    x = 171,621,884.92/11,407.81
  6. Step 6: Final answer
    x = 15,044.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.