Home / 18,890.70-26,068.36-10,392.28

Finding the Fourth Proportional to 18,890.70, 26,068.36 and 10,392.28

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Solution

The fourth proportional to 18,890.70, 26,068.36 and 10,392.28 is: 14,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,890.70 : 26,068.36 = 10,392.28 : x
  2. Step 2: Convert to fraction form
    18,890.70/26,068.36 = 10,392.28/x
  3. Step 3: Cross multiply
    18,890.70x = 26,068.36 × 10,392.28
  4. Step 4: Simplify right side
    18,890.70x = 270,909,696.26
  5. Step 5: Solve for x
    x = 270,909,696.26/18,890.70
  6. Step 6: Final answer
    x = 14,340.90

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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.