Home / 11,127.48-15,355.89-6,411.75

Finding the Fourth Proportional to 11,127.48, 15,355.89 and 6,411.75

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Solution

The fourth proportional to 11,127.48, 15,355.89 and 6,411.75 is: 8,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.48 : 15,355.89 = 6,411.75 : x
  2. Step 2: Convert to fraction form
    11,127.48/15,355.89 = 6,411.75/x
  3. Step 3: Cross multiply
    11,127.48x = 15,355.89 × 6,411.75
  4. Step 4: Simplify right side
    11,127.48x = 98,458,127.71
  5. Step 5: Solve for x
    x = 98,458,127.71/11,127.48
  6. Step 6: Final answer
    x = 8,848.20

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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.