Home / 16,862.90-23,271.39-9,309.51

Finding the Fourth Proportional to 16,862.90, 23,271.39 and 9,309.51

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Solution

The fourth proportional to 16,862.90, 23,271.39 and 9,309.51 is: 12,847.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,862.90 : 23,271.39 = 9,309.51 : x
  2. Step 2: Convert to fraction form
    16,862.90/23,271.39 = 9,309.51/x
  3. Step 3: Cross multiply
    16,862.90x = 23,271.39 × 9,309.51
  4. Step 4: Simplify right side
    16,862.90x = 216,645,237.92
  5. Step 5: Solve for x
    x = 216,645,237.92/16,862.90
  6. Step 6: Final answer
    x = 12,847.45

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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.