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Finding the Fourth Proportional to 7,007.58, 10,511.42 and 1,813.46

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Solution

The fourth proportional to 7,007.58, 10,511.42 and 1,813.46 is: 2,720.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.58 : 10,511.42 = 1,813.46 : x
  2. Step 2: Convert to fraction form
    7,007.58/10,511.42 = 1,813.46/x
  3. Step 3: Cross multiply
    7,007.58x = 10,511.42 × 1,813.46
  4. Step 4: Simplify right side
    7,007.58x = 19,062,017.51
  5. Step 5: Solve for x
    x = 19,062,017.51/7,007.58
  6. Step 6: Final answer
    x = 2,720.20

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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.