Home / 15,748.07-23,506.87-13,879.77

Finding the Fourth Proportional to 15,748.07, 23,506.87 and 13,879.77

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Solution

The fourth proportional to 15,748.07, 23,506.87 and 13,879.77 is: 20,718.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,748.07 : 23,506.87 = 13,879.77 : x
  2. Step 2: Convert to fraction form
    15,748.07/23,506.87 = 13,879.77/x
  3. Step 3: Cross multiply
    15,748.07x = 23,506.87 × 13,879.77
  4. Step 4: Simplify right side
    15,748.07x = 326,269,966.37
  5. Step 5: Solve for x
    x = 326,269,966.37/15,748.07
  6. Step 6: Final answer
    x = 20,718.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.