Home / 19,619.26-29,419.64-7,130.50

Finding the Fourth Proportional to 19,619.26, 29,419.64 and 7,130.50

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Solution

The fourth proportional to 19,619.26, 29,419.64 and 7,130.50 is: 10,692.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,619.26 : 29,419.64 = 7,130.50 : x
  2. Step 2: Convert to fraction form
    19,619.26/29,419.64 = 7,130.50/x
  3. Step 3: Cross multiply
    19,619.26x = 29,419.64 × 7,130.50
  4. Step 4: Simplify right side
    19,619.26x = 209,776,743.02
  5. Step 5: Solve for x
    x = 209,776,743.02/19,619.26
  6. Step 6: Final answer
    x = 10,692.39

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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.