Home / 14,455.09-19,950.14-8,490.02

Finding the Fourth Proportional to 14,455.09, 19,950.14 and 8,490.02

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Solution

The fourth proportional to 14,455.09, 19,950.14 and 8,490.02 is: 11,717.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,455.09 : 19,950.14 = 8,490.02 : x
  2. Step 2: Convert to fraction form
    14,455.09/19,950.14 = 8,490.02/x
  3. Step 3: Cross multiply
    14,455.09x = 19,950.14 × 8,490.02
  4. Step 4: Simplify right side
    14,455.09x = 169,377,087.60
  5. Step 5: Solve for x
    x = 169,377,087.60/14,455.09
  6. Step 6: Final answer
    x = 11,717.47

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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.