Home / 11,528.88-15,907.32-6,810.72

Finding the Fourth Proportional to 11,528.88, 15,907.32 and 6,810.72

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Solution

The fourth proportional to 11,528.88, 15,907.32 and 6,810.72 is: 9,397.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,528.88 : 15,907.32 = 6,810.72 : x
  2. Step 2: Convert to fraction form
    11,528.88/15,907.32 = 6,810.72/x
  3. Step 3: Cross multiply
    11,528.88x = 15,907.32 × 6,810.72
  4. Step 4: Simplify right side
    11,528.88x = 108,340,302.47
  5. Step 5: Solve for x
    x = 108,340,302.47/11,528.88
  6. Step 6: Final answer
    x = 9,397.30

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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.