Home / 15,037.72-20,751.74-8,322.95

Finding the Fourth Proportional to 15,037.72, 20,751.74 and 8,322.95

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Solution

The fourth proportional to 15,037.72, 20,751.74 and 8,322.95 is: 11,485.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,037.72 : 20,751.74 = 8,322.95 : x
  2. Step 2: Convert to fraction form
    15,037.72/20,751.74 = 8,322.95/x
  3. Step 3: Cross multiply
    15,037.72x = 20,751.74 × 8,322.95
  4. Step 4: Simplify right side
    15,037.72x = 172,715,666.00
  5. Step 5: Solve for x
    x = 172,715,666.00/15,037.72
  6. Step 6: Final answer
    x = 11,485.50

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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.