Home / 15,480.06-21,379.92-10,465.02

Finding the Fourth Proportional to 15,480.06, 21,379.92 and 10,465.02

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Solution

The fourth proportional to 15,480.06, 21,379.92 and 10,465.02 is: 14,453.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.06 : 21,379.92 = 10,465.02 : x
  2. Step 2: Convert to fraction form
    15,480.06/21,379.92 = 10,465.02/x
  3. Step 3: Cross multiply
    15,480.06x = 21,379.92 × 10,465.02
  4. Step 4: Simplify right side
    15,480.06x = 223,741,290.40
  5. Step 5: Solve for x
    x = 223,741,290.40/15,480.06
  6. Step 6: Final answer
    x = 14,453.52

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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.