Home / 16,689.92-23,037.21-9,621.05

Finding the Fourth Proportional to 16,689.92, 23,037.21 and 9,621.05

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Solution

The fourth proportional to 16,689.92, 23,037.21 and 9,621.05 is: 13,280.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,689.92 : 23,037.21 = 9,621.05 : x
  2. Step 2: Convert to fraction form
    16,689.92/23,037.21 = 9,621.05/x
  3. Step 3: Cross multiply
    16,689.92x = 23,037.21 × 9,621.05
  4. Step 4: Simplify right side
    16,689.92x = 221,642,034.08
  5. Step 5: Solve for x
    x = 221,642,034.08/16,689.92
  6. Step 6: Final answer
    x = 13,280.00

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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.