Home / 8,158.79-11,242.32-6,270.28

Finding the Fourth Proportional to 8,158.79, 11,242.32 and 6,270.28

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Solution

The fourth proportional to 8,158.79, 11,242.32 and 6,270.28 is: 8,640.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,158.79 : 11,242.32 = 6,270.28 : x
  2. Step 2: Convert to fraction form
    8,158.79/11,242.32 = 6,270.28/x
  3. Step 3: Cross multiply
    8,158.79x = 11,242.32 × 6,270.28
  4. Step 4: Simplify right side
    8,158.79x = 70,492,494.25
  5. Step 5: Solve for x
    x = 70,492,494.25/8,158.79
  6. Step 6: Final answer
    x = 8,640.07

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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.