Home / 14,319.09-21,484.79-6,929.07

Finding the Fourth Proportional to 14,319.09, 21,484.79 and 6,929.07

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Solution

The fourth proportional to 14,319.09, 21,484.79 and 6,929.07 is: 10,396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,319.09 : 21,484.79 = 6,929.07 : x
  2. Step 2: Convert to fraction form
    14,319.09/21,484.79 = 6,929.07/x
  3. Step 3: Cross multiply
    14,319.09x = 21,484.79 × 6,929.07
  4. Step 4: Simplify right side
    14,319.09x = 148,869,579.20
  5. Step 5: Solve for x
    x = 148,869,579.20/14,319.09
  6. Step 6: Final answer
    x = 10,396.58

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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.