Home / 16,782.71-23,158.34-9,707.81

Finding the Fourth Proportional to 16,782.71, 23,158.34 and 9,707.81

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Solution

The fourth proportional to 16,782.71, 23,158.34 and 9,707.81 is: 13,395.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,782.71 : 23,158.34 = 9,707.81 : x
  2. Step 2: Convert to fraction form
    16,782.71/23,158.34 = 9,707.81/x
  3. Step 3: Cross multiply
    16,782.71x = 23,158.34 × 9,707.81
  4. Step 4: Simplify right side
    16,782.71x = 224,816,600.30
  5. Step 5: Solve for x
    x = 224,816,600.30/16,782.71
  6. Step 6: Final answer
    x = 13,395.73

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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.