Home / 10,907.19-16,355.79-4,328.91

Finding the Fourth Proportional to 10,907.19, 16,355.79 and 4,328.91

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Solution

The fourth proportional to 10,907.19, 16,355.79 and 4,328.91 is: 6,491.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,907.19 : 16,355.79 = 4,328.91 : x
  2. Step 2: Convert to fraction form
    10,907.19/16,355.79 = 4,328.91/x
  3. Step 3: Cross multiply
    10,907.19x = 16,355.79 × 4,328.91
  4. Step 4: Simplify right side
    10,907.19x = 70,802,742.89
  5. Step 5: Solve for x
    x = 70,802,742.89/10,907.19
  6. Step 6: Final answer
    x = 6,491.38

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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.