Home / 15,175.45-20,955.00-9,519.63

Finding the Fourth Proportional to 15,175.45, 20,955.00 and 9,519.63

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Solution

The fourth proportional to 15,175.45, 20,955.00 and 9,519.63 is: 13,145.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,175.45 : 20,955.00 = 9,519.63 : x
  2. Step 2: Convert to fraction form
    15,175.45/20,955.00 = 9,519.63/x
  3. Step 3: Cross multiply
    15,175.45x = 20,955.00 × 9,519.63
  4. Step 4: Simplify right side
    15,175.45x = 199,483,803.77
  5. Step 5: Solve for x
    x = 199,483,803.77/15,175.45
  6. Step 6: Final answer
    x = 13,145.16

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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.