Home / 19,767.90-29,655.36-6,621.60

Finding the Fourth Proportional to 19,767.90, 29,655.36 and 6,621.60

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Solution

The fourth proportional to 19,767.90, 29,655.36 and 6,621.60 is: 9,933.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,767.90 : 29,655.36 = 6,621.60 : x
  2. Step 2: Convert to fraction form
    19,767.90/29,655.36 = 6,621.60/x
  3. Step 3: Cross multiply
    19,767.90x = 29,655.36 × 6,621.60
  4. Step 4: Simplify right side
    19,767.90x = 196,365,931.78
  5. Step 5: Solve for x
    x = 196,365,931.78/19,767.90
  6. Step 6: Final answer
    x = 9,933.58

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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.