Home / 9,160.17-12,640.43-5,126.32

Finding the Fourth Proportional to 9,160.17, 12,640.43 and 5,126.32

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Solution

The fourth proportional to 9,160.17, 12,640.43 and 5,126.32 is: 7,073.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,160.17 : 12,640.43 = 5,126.32 : x
  2. Step 2: Convert to fraction form
    9,160.17/12,640.43 = 5,126.32/x
  3. Step 3: Cross multiply
    9,160.17x = 12,640.43 × 5,126.32
  4. Step 4: Simplify right side
    9,160.17x = 64,798,800.28
  5. Step 5: Solve for x
    x = 64,798,800.28/9,160.17
  6. Step 6: Final answer
    x = 7,073.98

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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.