Home / 15,039.68-20,751.60-11,453.91

Finding the Fourth Proportional to 15,039.68, 20,751.60 and 11,453.91

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Solution

The fourth proportional to 15,039.68, 20,751.60 and 11,453.91 is: 15,804.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,039.68 : 20,751.60 = 11,453.91 : x
  2. Step 2: Convert to fraction form
    15,039.68/20,751.60 = 11,453.91/x
  3. Step 3: Cross multiply
    15,039.68x = 20,751.60 × 11,453.91
  4. Step 4: Simplify right side
    15,039.68x = 237,686,958.76
  5. Step 5: Solve for x
    x = 237,686,958.76/15,039.68
  6. Step 6: Final answer
    x = 15,804.00

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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.