Home / 15,322.02-21,140.69-8,945.00

Finding the Fourth Proportional to 15,322.02, 21,140.69 and 8,945.00

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Solution

The fourth proportional to 15,322.02, 21,140.69 and 8,945.00 is: 12,341.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,322.02 : 21,140.69 = 8,945.00 : x
  2. Step 2: Convert to fraction form
    15,322.02/21,140.69 = 8,945.00/x
  3. Step 3: Cross multiply
    15,322.02x = 21,140.69 × 8,945.00
  4. Step 4: Simplify right side
    15,322.02x = 189,103,321.62
  5. Step 5: Solve for x
    x = 189,103,321.62/15,322.02
  6. Step 6: Final answer
    x = 12,341.93

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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.