Home / 14,319.47-21,489.61-10,813.81

Finding the Fourth Proportional to 14,319.47, 21,489.61 and 10,813.81

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Solution

The fourth proportional to 14,319.47, 21,489.61 and 10,813.81 is: 16,228.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,319.47 : 21,489.61 = 10,813.81 : x
  2. Step 2: Convert to fraction form
    14,319.47/21,489.61 = 10,813.81/x
  3. Step 3: Cross multiply
    14,319.47x = 21,489.61 × 10,813.81
  4. Step 4: Simplify right side
    14,319.47x = 232,384,559.51
  5. Step 5: Solve for x
    x = 232,384,559.51/14,319.47
  6. Step 6: Final answer
    x = 16,228.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.