Home / 16,688.94-23,031.84-9,615.81

Finding the Fourth Proportional to 16,688.94, 23,031.84 and 9,615.81

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Solution

The fourth proportional to 16,688.94, 23,031.84 and 9,615.81 is: 13,270.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,688.94 : 23,031.84 = 9,615.81 : x
  2. Step 2: Convert to fraction form
    16,688.94/23,031.84 = 9,615.81/x
  3. Step 3: Cross multiply
    16,688.94x = 23,031.84 × 9,615.81
  4. Step 4: Simplify right side
    16,688.94x = 221,469,919.82
  5. Step 5: Solve for x
    x = 221,469,919.82/16,688.94
  6. Step 6: Final answer
    x = 13,270.46

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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.