Home / 16,990.20-23,445.69-9,437.01

Finding the Fourth Proportional to 16,990.20, 23,445.69 and 9,437.01

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Solution

The fourth proportional to 16,990.20, 23,445.69 and 9,437.01 is: 13,022.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.20 : 23,445.69 = 9,437.01 : x
  2. Step 2: Convert to fraction form
    16,990.20/23,445.69 = 9,437.01/x
  3. Step 3: Cross multiply
    16,990.20x = 23,445.69 × 9,437.01
  4. Step 4: Simplify right side
    16,990.20x = 221,257,210.99
  5. Step 5: Solve for x
    x = 221,257,210.99/16,990.20
  6. Step 6: Final answer
    x = 13,022.64

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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.