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Finding the Fourth Proportional to 18,368.64, 25,339.32 and 10,810.08

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Solution

The fourth proportional to 18,368.64, 25,339.32 and 10,810.08 is: 14,912.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.64 : 25,339.32 = 10,810.08 : x
  2. Step 2: Convert to fraction form
    18,368.64/25,339.32 = 10,810.08/x
  3. Step 3: Cross multiply
    18,368.64x = 25,339.32 × 10,810.08
  4. Step 4: Simplify right side
    18,368.64x = 273,920,076.35
  5. Step 5: Solve for x
    x = 273,920,076.35/18,368.64
  6. Step 6: Final answer
    x = 14,912.38

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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.