Home / 8,763.89-12,094.09-5,405.36

Finding the Fourth Proportional to 8,763.89, 12,094.09 and 5,405.36

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Solution

The fourth proportional to 8,763.89, 12,094.09 and 5,405.36 is: 7,459.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.89 : 12,094.09 = 5,405.36 : x
  2. Step 2: Convert to fraction form
    8,763.89/12,094.09 = 5,405.36/x
  3. Step 3: Cross multiply
    8,763.89x = 12,094.09 × 5,405.36
  4. Step 4: Simplify right side
    8,763.89x = 65,372,927.04
  5. Step 5: Solve for x
    x = 65,372,927.04/8,763.89
  6. Step 6: Final answer
    x = 7,459.35

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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.