Home / 15,348.74-21,184.29-9,977.84

Finding the Fourth Proportional to 15,348.74, 21,184.29 and 9,977.84

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Solution

The fourth proportional to 15,348.74, 21,184.29 and 9,977.84 is: 13,771.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348.74 : 21,184.29 = 9,977.84 : x
  2. Step 2: Convert to fraction form
    15,348.74/21,184.29 = 9,977.84/x
  3. Step 3: Cross multiply
    15,348.74x = 21,184.29 × 9,977.84
  4. Step 4: Simplify right side
    15,348.74x = 211,373,350.21
  5. Step 5: Solve for x
    x = 211,373,350.21/15,348.74
  6. Step 6: Final answer
    x = 13,771.38

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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.