Home / 13,806.95-19,053.80-7,519.32

Finding the Fourth Proportional to 13,806.95, 19,053.80 and 7,519.32

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Solution

The fourth proportional to 13,806.95, 19,053.80 and 7,519.32 is: 10,376.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,806.95 : 19,053.80 = 7,519.32 : x
  2. Step 2: Convert to fraction form
    13,806.95/19,053.80 = 7,519.32/x
  3. Step 3: Cross multiply
    13,806.95x = 19,053.80 × 7,519.32
  4. Step 4: Simplify right side
    13,806.95x = 143,271,581.82
  5. Step 5: Solve for x
    x = 143,271,581.82/13,806.95
  6. Step 6: Final answer
    x = 10,376.78

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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.