Home / 8,468.60-11,687.10-5,111.36

Finding the Fourth Proportional to 8,468.60, 11,687.10 and 5,111.36

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Solution

The fourth proportional to 8,468.60, 11,687.10 and 5,111.36 is: 7,053.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.60 : 11,687.10 = 5,111.36 : x
  2. Step 2: Convert to fraction form
    8,468.60/11,687.10 = 5,111.36/x
  3. Step 3: Cross multiply
    8,468.60x = 11,687.10 × 5,111.36
  4. Step 4: Simplify right side
    8,468.60x = 59,736,985.51
  5. Step 5: Solve for x
    x = 59,736,985.51/8,468.60
  6. Step 6: Final answer
    x = 7,053.94

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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.