Home / 15,060.72-20,776.80-9,757.32

Finding the Fourth Proportional to 15,060.72, 20,776.80 and 9,757.32

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Solution

The fourth proportional to 15,060.72, 20,776.80 and 9,757.32 is: 13,460.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060.72 : 20,776.80 = 9,757.32 : x
  2. Step 2: Convert to fraction form
    15,060.72/20,776.80 = 9,757.32/x
  3. Step 3: Cross multiply
    15,060.72x = 20,776.80 × 9,757.32
  4. Step 4: Simplify right side
    15,060.72x = 202,725,886.18
  5. Step 5: Solve for x
    x = 202,725,886.18/15,060.72
  6. Step 6: Final answer
    x = 13,460.57

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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.