Home / 9,019.08-12,439.44-7,762.20

Finding the Fourth Proportional to 9,019.08, 12,439.44 and 7,762.20

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Solution

The fourth proportional to 9,019.08, 12,439.44 and 7,762.20 is: 10,705.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,019.08 : 12,439.44 = 7,762.20 : x
  2. Step 2: Convert to fraction form
    9,019.08/12,439.44 = 7,762.20/x
  3. Step 3: Cross multiply
    9,019.08x = 12,439.44 × 7,762.20
  4. Step 4: Simplify right side
    9,019.08x = 96,557,421.17
  5. Step 5: Solve for x
    x = 96,557,421.17/9,019.08
  6. Step 6: Final answer
    x = 10,705.91

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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.