Home / 13,426.72-18,535.20-10,435.36

Finding the Fourth Proportional to 13,426.72, 18,535.20 and 10,435.36

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Solution

The fourth proportional to 13,426.72, 18,535.20 and 10,435.36 is: 14,405.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426.72 : 18,535.20 = 10,435.36 : x
  2. Step 2: Convert to fraction form
    13,426.72/18,535.20 = 10,435.36/x
  3. Step 3: Cross multiply
    13,426.72x = 18,535.20 × 10,435.36
  4. Step 4: Simplify right side
    13,426.72x = 193,421,484.67
  5. Step 5: Solve for x
    x = 193,421,484.67/13,426.72
  6. Step 6: Final answer
    x = 14,405.71

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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.