Home / 11,130.77-15,355.26-6,412.31

Finding the Fourth Proportional to 11,130.77, 15,355.26 and 6,412.31

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Solution

The fourth proportional to 11,130.77, 15,355.26 and 6,412.31 is: 8,845.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.77 : 15,355.26 = 6,412.31 : x
  2. Step 2: Convert to fraction form
    11,130.77/15,355.26 = 6,412.31/x
  3. Step 3: Cross multiply
    11,130.77x = 15,355.26 × 6,412.31
  4. Step 4: Simplify right side
    11,130.77x = 98,462,610.47
  5. Step 5: Solve for x
    x = 98,462,610.47/11,130.77
  6. Step 6: Final answer
    x = 8,845.99

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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.