Home / 14,987.72-20,683.40-8,273.22

Finding the Fourth Proportional to 14,987.72, 20,683.40 and 8,273.22

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Solution

The fourth proportional to 14,987.72, 20,683.40 and 8,273.22 is: 11,417.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,987.72 : 20,683.40 = 8,273.22 : x
  2. Step 2: Convert to fraction form
    14,987.72/20,683.40 = 8,273.22/x
  3. Step 3: Cross multiply
    14,987.72x = 20,683.40 × 8,273.22
  4. Step 4: Simplify right side
    14,987.72x = 171,118,277.18
  5. Step 5: Solve for x
    x = 171,118,277.18/14,987.72
  6. Step 6: Final answer
    x = 11,417.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.