Home / 15,075.39-20,814.35-9,418.76

Finding the Fourth Proportional to 15,075.39, 20,814.35 and 9,418.76

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Solution

The fourth proportional to 15,075.39, 20,814.35 and 9,418.76 is: 13,004.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,075.39 : 20,814.35 = 9,418.76 : x
  2. Step 2: Convert to fraction form
    15,075.39/20,814.35 = 9,418.76/x
  3. Step 3: Cross multiply
    15,075.39x = 20,814.35 × 9,418.76
  4. Step 4: Simplify right side
    15,075.39x = 196,045,216.04
  5. Step 5: Solve for x
    x = 196,045,216.04/15,075.39
  6. Step 6: Final answer
    x = 13,004.32

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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.