Home / 8,670.36-11,970.54-5,690.52

Finding the Fourth Proportional to 8,670.36, 11,970.54 and 5,690.52

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Solution

The fourth proportional to 8,670.36, 11,970.54 and 5,690.52 is: 7,856.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,670.36 : 11,970.54 = 5,690.52 : x
  2. Step 2: Convert to fraction form
    8,670.36/11,970.54 = 5,690.52/x
  3. Step 3: Cross multiply
    8,670.36x = 11,970.54 × 5,690.52
  4. Step 4: Simplify right side
    8,670.36x = 68,118,597.28
  5. Step 5: Solve for x
    x = 68,118,597.28/8,670.36
  6. Step 6: Final answer
    x = 7,856.49

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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.