Home / 15,800.23-23,699.94-6,440.21

Finding the Fourth Proportional to 15,800.23, 23,699.94 and 6,440.21

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Solution

The fourth proportional to 15,800.23, 23,699.94 and 6,440.21 is: 9,660.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,800.23 : 23,699.94 = 6,440.21 : x
  2. Step 2: Convert to fraction form
    15,800.23/23,699.94 = 6,440.21/x
  3. Step 3: Cross multiply
    15,800.23x = 23,699.94 × 6,440.21
  4. Step 4: Simplify right side
    15,800.23x = 152,632,536.81
  5. Step 5: Solve for x
    x = 152,632,536.81/15,800.23
  6. Step 6: Final answer
    x = 9,660.15

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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.