Home / 8,920.29-12,308.37-5,774.67

Finding the Fourth Proportional to 8,920.29, 12,308.37 and 5,774.67

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Solution

The fourth proportional to 8,920.29, 12,308.37 and 5,774.67 is: 7,967.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.29 : 12,308.37 = 5,774.67 : x
  2. Step 2: Convert to fraction form
    8,920.29/12,308.37 = 5,774.67/x
  3. Step 3: Cross multiply
    8,920.29x = 12,308.37 × 5,774.67
  4. Step 4: Simplify right side
    8,920.29x = 71,076,774.99
  5. Step 5: Solve for x
    x = 71,076,774.99/8,920.29
  6. Step 6: Final answer
    x = 7,967.99

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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.