Home / 14,157.20-19,536.93-7,869.57

Finding the Fourth Proportional to 14,157.20, 19,536.93 and 7,869.57

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Solution

The fourth proportional to 14,157.20, 19,536.93 and 7,869.57 is: 10,860.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,157.20 : 19,536.93 = 7,869.57 : x
  2. Step 2: Convert to fraction form
    14,157.20/19,536.93 = 7,869.57/x
  3. Step 3: Cross multiply
    14,157.20x = 19,536.93 × 7,869.57
  4. Step 4: Simplify right side
    14,157.20x = 153,747,238.22
  5. Step 5: Solve for x
    x = 153,747,238.22/14,157.20
  6. Step 6: Final answer
    x = 10,860.01

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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.