Home / 11,412.85-15,749.16-6,376.07

Finding the Fourth Proportional to 11,412.85, 15,749.16 and 6,376.07

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Solution

The fourth proportional to 11,412.85, 15,749.16 and 6,376.07 is: 8,798.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,412.85 : 15,749.16 = 6,376.07 : x
  2. Step 2: Convert to fraction form
    11,412.85/15,749.16 = 6,376.07/x
  3. Step 3: Cross multiply
    11,412.85x = 15,749.16 × 6,376.07
  4. Step 4: Simplify right side
    11,412.85x = 100,417,746.60
  5. Step 5: Solve for x
    x = 100,417,746.60/11,412.85
  6. Step 6: Final answer
    x = 8,798.66

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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.