Home / 14,905.32-20,569.28-8,191.23

Finding the Fourth Proportional to 14,905.32, 20,569.28 and 8,191.23

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Solution

The fourth proportional to 14,905.32, 20,569.28 and 8,191.23 is: 11,303.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.32 : 20,569.28 = 8,191.23 : x
  2. Step 2: Convert to fraction form
    14,905.32/20,569.28 = 8,191.23/x
  3. Step 3: Cross multiply
    14,905.32x = 20,569.28 × 8,191.23
  4. Step 4: Simplify right side
    14,905.32x = 168,487,703.41
  5. Step 5: Solve for x
    x = 168,487,703.41/14,905.32
  6. Step 6: Final answer
    x = 11,303.86

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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.