Home / 19,516.40-29,263.80-7,816.40

Finding the Fourth Proportional to 19,516.40, 29,263.80 and 7,816.40

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Solution

The fourth proportional to 19,516.40, 29,263.80 and 7,816.40 is: 11,720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,516.40 : 29,263.80 = 7,816.40 : x
  2. Step 2: Convert to fraction form
    19,516.40/29,263.80 = 7,816.40/x
  3. Step 3: Cross multiply
    19,516.40x = 29,263.80 × 7,816.40
  4. Step 4: Simplify right side
    19,516.40x = 228,737,566.32
  5. Step 5: Solve for x
    x = 228,737,566.32/19,516.40
  6. Step 6: Final answer
    x = 11,720.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.