Home / 16,830.28-23,225.76-9,378.28

Finding the Fourth Proportional to 16,830.28, 23,225.76 and 9,378.28

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Solution

The fourth proportional to 16,830.28, 23,225.76 and 9,378.28 is: 12,942.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,830.28 : 23,225.76 = 9,378.28 : x
  2. Step 2: Convert to fraction form
    16,830.28/23,225.76 = 9,378.28/x
  3. Step 3: Cross multiply
    16,830.28x = 23,225.76 × 9,378.28
  4. Step 4: Simplify right side
    16,830.28x = 217,817,680.49
  5. Step 5: Solve for x
    x = 217,817,680.49/16,830.28
  6. Step 6: Final answer
    x = 12,942.01

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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.