Home / 16,688.79-23,035.66-9,619.92

Finding the Fourth Proportional to 16,688.79, 23,035.66 and 9,619.92

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Solution

The fourth proportional to 16,688.79, 23,035.66 and 9,619.92 is: 13,278.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,688.79 : 23,035.66 = 9,619.92 : x
  2. Step 2: Convert to fraction form
    16,688.79/23,035.66 = 9,619.92/x
  3. Step 3: Cross multiply
    16,688.79x = 23,035.66 × 9,619.92
  4. Step 4: Simplify right side
    16,688.79x = 221,601,182.30
  5. Step 5: Solve for x
    x = 221,601,182.30/16,688.79
  6. Step 6: Final answer
    x = 13,278.45

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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.