Home / 19,350.08-29,031.36-7,656.80

Finding the Fourth Proportional to 19,350.08, 29,031.36 and 7,656.80

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Solution

The fourth proportional to 19,350.08, 29,031.36 and 7,656.80 is: 11,487.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,350.08 : 29,031.36 = 7,656.80 : x
  2. Step 2: Convert to fraction form
    19,350.08/29,031.36 = 7,656.80/x
  3. Step 3: Cross multiply
    19,350.08x = 29,031.36 × 7,656.80
  4. Step 4: Simplify right side
    19,350.08x = 222,287,317.25
  5. Step 5: Solve for x
    x = 222,287,317.25/19,350.08
  6. Step 6: Final answer
    x = 11,487.67

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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.