Home / 16,990.87-23,446.59-9,437.68

Finding the Fourth Proportional to 16,990.87, 23,446.59 and 9,437.68

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Solution

The fourth proportional to 16,990.87, 23,446.59 and 9,437.68 is: 13,023.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.87 : 23,446.59 = 9,437.68 : x
  2. Step 2: Convert to fraction form
    16,990.87/23,446.59 = 9,437.68/x
  3. Step 3: Cross multiply
    16,990.87x = 23,446.59 × 9,437.68
  4. Step 4: Simplify right side
    16,990.87x = 221,281,413.51
  5. Step 5: Solve for x
    x = 221,281,413.51/16,990.87
  6. Step 6: Final answer
    x = 13,023.55

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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.