Home / 11,125.66-15,271.61-9,838.51

Finding the Fourth Proportional to 11,125.66, 15,271.61 and 9,838.51

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Solution

The fourth proportional to 11,125.66, 15,271.61 and 9,838.51 is: 13,504.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,125.66 : 15,271.61 = 9,838.51 : x
  2. Step 2: Convert to fraction form
    11,125.66/15,271.61 = 9,838.51/x
  3. Step 3: Cross multiply
    11,125.66x = 15,271.61 × 9,838.51
  4. Step 4: Simplify right side
    11,125.66x = 150,249,887.70
  5. Step 5: Solve for x
    x = 150,249,887.70/11,125.66
  6. Step 6: Final answer
    x = 13,504.81

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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.