Home / 14,128.16-21,181.23-6,331.50

Finding the Fourth Proportional to 14,128.16, 21,181.23 and 6,331.50

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Solution

The fourth proportional to 14,128.16, 21,181.23 and 6,331.50 is: 9,492.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.16 : 21,181.23 = 6,331.50 : x
  2. Step 2: Convert to fraction form
    14,128.16/21,181.23 = 6,331.50/x
  3. Step 3: Cross multiply
    14,128.16x = 21,181.23 × 6,331.50
  4. Step 4: Simplify right side
    14,128.16x = 134,108,957.75
  5. Step 5: Solve for x
    x = 134,108,957.75/14,128.16
  6. Step 6: Final answer
    x = 9,492.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.