Home / 16,688.40-23,028.72-9,133.04

Finding the Fourth Proportional to 16,688.40, 23,028.72 and 9,133.04

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Solution

The fourth proportional to 16,688.40, 23,028.72 and 9,133.04 is: 12,602.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,688.40 : 23,028.72 = 9,133.04 : x
  2. Step 2: Convert to fraction form
    16,688.40/23,028.72 = 9,133.04/x
  3. Step 3: Cross multiply
    16,688.40x = 23,028.72 × 9,133.04
  4. Step 4: Simplify right side
    16,688.40x = 210,322,220.91
  5. Step 5: Solve for x
    x = 210,322,220.91/16,688.40
  6. Step 6: Final answer
    x = 12,602.90

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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.