Home / 13,225.08-18,249.12-7,848.48

Finding the Fourth Proportional to 13,225.08, 18,249.12 and 7,848.48

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Solution

The fourth proportional to 13,225.08, 18,249.12 and 7,848.48 is: 10,830.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.08 : 18,249.12 = 7,848.48 : x
  2. Step 2: Convert to fraction form
    13,225.08/18,249.12 = 7,848.48/x
  3. Step 3: Cross multiply
    13,225.08x = 18,249.12 × 7,848.48
  4. Step 4: Simplify right side
    13,225.08x = 143,227,853.34
  5. Step 5: Solve for x
    x = 143,227,853.34/13,225.08
  6. Step 6: Final answer
    x = 10,830.02

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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.