Home / 10,135.81-15,189.13-4,284.37

Finding the Fourth Proportional to 10,135.81, 15,189.13 and 4,284.37

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Solution

The fourth proportional to 10,135.81, 15,189.13 and 4,284.37 is: 6,420.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,135.81 : 15,189.13 = 4,284.37 : x
  2. Step 2: Convert to fraction form
    10,135.81/15,189.13 = 4,284.37/x
  3. Step 3: Cross multiply
    10,135.81x = 15,189.13 × 4,284.37
  4. Step 4: Simplify right side
    10,135.81x = 65,075,852.90
  5. Step 5: Solve for x
    x = 65,075,852.90/10,135.81
  6. Step 6: Final answer
    x = 6,420.39

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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.