Home / 15,464.85-21,341.37-8,750.42

Finding the Fourth Proportional to 15,464.85, 21,341.37 and 8,750.42

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Solution

The fourth proportional to 15,464.85, 21,341.37 and 8,750.42 is: 12,075.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,464.85 : 21,341.37 = 8,750.42 : x
  2. Step 2: Convert to fraction form
    15,464.85/21,341.37 = 8,750.42/x
  3. Step 3: Cross multiply
    15,464.85x = 21,341.37 × 8,750.42
  4. Step 4: Simplify right side
    15,464.85x = 186,745,950.88
  5. Step 5: Solve for x
    x = 186,745,950.88/15,464.85
  6. Step 6: Final answer
    x = 12,075.51

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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.