Home / 11,328.04-15,638.37-7,081.46

Finding the Fourth Proportional to 11,328.04, 15,638.37 and 7,081.46

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Solution

The fourth proportional to 11,328.04, 15,638.37 and 7,081.46 is: 9,775.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,328.04 : 15,638.37 = 7,081.46 : x
  2. Step 2: Convert to fraction form
    11,328.04/15,638.37 = 7,081.46/x
  3. Step 3: Cross multiply
    11,328.04x = 15,638.37 × 7,081.46
  4. Step 4: Simplify right side
    11,328.04x = 110,742,549.25
  5. Step 5: Solve for x
    x = 110,742,549.25/11,328.04
  6. Step 6: Final answer
    x = 9,775.97

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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.