Home / 18,977.34-28,465.95-5,126.34

Finding the Fourth Proportional to 18,977.34, 28,465.95 and 5,126.34

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Solution

The fourth proportional to 18,977.34, 28,465.95 and 5,126.34 is: 7,689.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.34 : 28,465.95 = 5,126.34 : x
  2. Step 2: Convert to fraction form
    18,977.34/28,465.95 = 5,126.34/x
  3. Step 3: Cross multiply
    18,977.34x = 28,465.95 × 5,126.34
  4. Step 4: Simplify right side
    18,977.34x = 145,926,138.12
  5. Step 5: Solve for x
    x = 145,926,138.12/18,977.34
  6. Step 6: Final answer
    x = 7,689.49

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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.