Home / 11,043.78-15,237.80-7,465.40

Finding the Fourth Proportional to 11,043.78, 15,237.80 and 7,465.40

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Solution

The fourth proportional to 11,043.78, 15,237.80 and 7,465.40 is: 10,300.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,043.78 : 15,237.80 = 7,465.40 : x
  2. Step 2: Convert to fraction form
    11,043.78/15,237.80 = 7,465.40/x
  3. Step 3: Cross multiply
    11,043.78x = 15,237.80 × 7,465.40
  4. Step 4: Simplify right side
    11,043.78x = 113,756,272.12
  5. Step 5: Solve for x
    x = 113,756,272.12/11,043.78
  6. Step 6: Final answer
    x = 10,300.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.