Home / 15,538.95-21,451.69-10,529.64

Finding the Fourth Proportional to 15,538.95, 21,451.69 and 10,529.64

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Solution

The fourth proportional to 15,538.95, 21,451.69 and 10,529.64 is: 14,536.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538.95 : 21,451.69 = 10,529.64 : x
  2. Step 2: Convert to fraction form
    15,538.95/21,451.69 = 10,529.64/x
  3. Step 3: Cross multiply
    15,538.95x = 21,451.69 × 10,529.64
  4. Step 4: Simplify right side
    15,538.95x = 225,878,573.09
  5. Step 5: Solve for x
    x = 225,878,573.09/15,538.95
  6. Step 6: Final answer
    x = 14,536.28

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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.