Home / 9,386.56-14,144.36-7,779.20

Finding the Fourth Proportional to 9,386.56, 14,144.36 and 7,779.20

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Solution

The fourth proportional to 9,386.56, 14,144.36 and 7,779.20 is: 11,722.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,386.56 : 14,144.36 = 7,779.20 : x
  2. Step 2: Convert to fraction form
    9,386.56/14,144.36 = 7,779.20/x
  3. Step 3: Cross multiply
    9,386.56x = 14,144.36 × 7,779.20
  4. Step 4: Simplify right side
    9,386.56x = 110,031,805.31
  5. Step 5: Solve for x
    x = 110,031,805.31/9,386.56
  6. Step 6: Final answer
    x = 11,722.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.