Home / 16,820.24-23,212.36-9,368.40

Finding the Fourth Proportional to 16,820.24, 23,212.36 and 9,368.40

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Solution

The fourth proportional to 16,820.24, 23,212.36 and 9,368.40 is: 12,928.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,820.24 : 23,212.36 = 9,368.40 : x
  2. Step 2: Convert to fraction form
    16,820.24/23,212.36 = 9,368.40/x
  3. Step 3: Cross multiply
    16,820.24x = 23,212.36 × 9,368.40
  4. Step 4: Simplify right side
    16,820.24x = 217,462,673.42
  5. Step 5: Solve for x
    x = 217,462,673.42/16,820.24
  6. Step 6: Final answer
    x = 12,928.63

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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.