Home / 16,686.42-23,011.65-11,309.64

Finding the Fourth Proportional to 16,686.42, 23,011.65 and 11,309.64

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Solution

The fourth proportional to 16,686.42, 23,011.65 and 11,309.64 is: 15,596.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,686.42 : 23,011.65 = 11,309.64 : x
  2. Step 2: Convert to fraction form
    16,686.42/23,011.65 = 11,309.64/x
  3. Step 3: Cross multiply
    16,686.42x = 23,011.65 × 11,309.64
  4. Step 4: Simplify right side
    16,686.42x = 260,253,477.31
  5. Step 5: Solve for x
    x = 260,253,477.31/16,686.42
  6. Step 6: Final answer
    x = 15,596.72

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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.