Home / 19,085.49-26,339.67-11,128.50

Finding the Fourth Proportional to 19,085.49, 26,339.67 and 11,128.50

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Solution

The fourth proportional to 19,085.49, 26,339.67 and 11,128.50 is: 15,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,085.49 : 26,339.67 = 11,128.50 : x
  2. Step 2: Convert to fraction form
    19,085.49/26,339.67 = 11,128.50/x
  3. Step 3: Cross multiply
    19,085.49x = 26,339.67 × 11,128.50
  4. Step 4: Simplify right side
    19,085.49x = 293,121,017.60
  5. Step 5: Solve for x
    x = 293,121,017.60/19,085.49
  6. Step 6: Final answer
    x = 15,358.32

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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.