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Finding the Fourth Proportional to 15,077.03, 20,807.58 and 8,364.82

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Solution

The fourth proportional to 15,077.03, 20,807.58 and 8,364.82 is: 11,544.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,077.03 : 20,807.58 = 8,364.82 : x
  2. Step 2: Convert to fraction form
    15,077.03/20,807.58 = 8,364.82/x
  3. Step 3: Cross multiply
    15,077.03x = 20,807.58 × 8,364.82
  4. Step 4: Simplify right side
    15,077.03x = 174,051,515.47
  5. Step 5: Solve for x
    x = 174,051,515.47/15,077.03
  6. Step 6: Final answer
    x = 11,544.15

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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.