Home / 16,707.64-23,054.35-9,990.81

Finding the Fourth Proportional to 16,707.64, 23,054.35 and 9,990.81

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Solution

The fourth proportional to 16,707.64, 23,054.35 and 9,990.81 is: 13,786.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,707.64 : 23,054.35 = 9,990.81 : x
  2. Step 2: Convert to fraction form
    16,707.64/23,054.35 = 9,990.81/x
  3. Step 3: Cross multiply
    16,707.64x = 23,054.35 × 9,990.81
  4. Step 4: Simplify right side
    16,707.64x = 230,331,663.18
  5. Step 5: Solve for x
    x = 230,331,663.18/16,707.64
  6. Step 6: Final answer
    x = 13,786.01

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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.