Home / 19,109.79-26,370.50-10,611.81

Finding the Fourth Proportional to 19,109.79, 26,370.50 and 10,611.81

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Solution

The fourth proportional to 19,109.79, 26,370.50 and 10,611.81 is: 14,643.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,109.79 : 26,370.50 = 10,611.81 : x
  2. Step 2: Convert to fraction form
    19,109.79/26,370.50 = 10,611.81/x
  3. Step 3: Cross multiply
    19,109.79x = 26,370.50 × 10,611.81
  4. Step 4: Simplify right side
    19,109.79x = 279,838,682.55
  5. Step 5: Solve for x
    x = 279,838,682.55/19,109.79
  6. Step 6: Final answer
    x = 14,643.73

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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.