Home / 15,289.29-21,092.81-10,813.23

Finding the Fourth Proportional to 15,289.29, 21,092.81 and 10,813.23

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Solution

The fourth proportional to 15,289.29, 21,092.81 and 10,813.23 is: 14,917.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,289.29 : 21,092.81 = 10,813.23 : x
  2. Step 2: Convert to fraction form
    15,289.29/21,092.81 = 10,813.23/x
  3. Step 3: Cross multiply
    15,289.29x = 21,092.81 × 10,813.23
  4. Step 4: Simplify right side
    15,289.29x = 228,081,351.81
  5. Step 5: Solve for x
    x = 228,081,351.81/15,289.29
  6. Step 6: Final answer
    x = 14,917.72

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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.