Home / 13,748.72-18,980.73-10,364.81

Finding the Fourth Proportional to 13,748.72, 18,980.73 and 10,364.81

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Solution

The fourth proportional to 13,748.72, 18,980.73 and 10,364.81 is: 14,309.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,748.72 : 18,980.73 = 10,364.81 : x
  2. Step 2: Convert to fraction form
    13,748.72/18,980.73 = 10,364.81/x
  3. Step 3: Cross multiply
    13,748.72x = 18,980.73 × 10,364.81
  4. Step 4: Simplify right side
    13,748.72x = 196,731,565.21
  5. Step 5: Solve for x
    x = 196,731,565.21/13,748.72
  6. Step 6: Final answer
    x = 14,309.09

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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.