Home / 12,225.62-18,345.75-5,300.12

Finding the Fourth Proportional to 12,225.62, 18,345.75 and 5,300.12

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Solution

The fourth proportional to 12,225.62, 18,345.75 and 5,300.12 is: 7,953.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,225.62 : 18,345.75 = 5,300.12 : x
  2. Step 2: Convert to fraction form
    12,225.62/18,345.75 = 5,300.12/x
  3. Step 3: Cross multiply
    12,225.62x = 18,345.75 × 5,300.12
  4. Step 4: Simplify right side
    12,225.62x = 97,234,676.49
  5. Step 5: Solve for x
    x = 97,234,676.49/12,225.62
  6. Step 6: Final answer
    x = 7,953.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.