Home / 10,467.06-14,416.45-9,678.79

Finding the Fourth Proportional to 10,467.06, 14,416.45 and 9,678.79

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Solution

The fourth proportional to 10,467.06, 14,416.45 and 9,678.79 is: 13,330.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,467.06 : 14,416.45 = 9,678.79 : x
  2. Step 2: Convert to fraction form
    10,467.06/14,416.45 = 9,678.79/x
  3. Step 3: Cross multiply
    10,467.06x = 14,416.45 × 9,678.79
  4. Step 4: Simplify right side
    10,467.06x = 139,533,792.10
  5. Step 5: Solve for x
    x = 139,533,792.10/10,467.06
  6. Step 6: Final answer
    x = 13,330.75

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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.