Home / 13,690.64-18,903.80-10,714.96

Finding the Fourth Proportional to 13,690.64, 18,903.80 and 10,714.96

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Solution

The fourth proportional to 13,690.64, 18,903.80 and 10,714.96 is: 14,795.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,690.64 : 18,903.80 = 10,714.96 : x
  2. Step 2: Convert to fraction form
    13,690.64/18,903.80 = 10,714.96/x
  3. Step 3: Cross multiply
    13,690.64x = 18,903.80 × 10,714.96
  4. Step 4: Simplify right side
    13,690.64x = 202,553,460.85
  5. Step 5: Solve for x
    x = 202,553,460.85/13,690.64
  6. Step 6: Final answer
    x = 14,795.03

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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.