Home / 14,455.78-21,666.93-6,648.19

Finding the Fourth Proportional to 14,455.78, 21,666.93 and 6,648.19

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Solution

The fourth proportional to 14,455.78, 21,666.93 and 6,648.19 is: 9,964.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,455.78 : 21,666.93 = 6,648.19 : x
  2. Step 2: Convert to fraction form
    14,455.78/21,666.93 = 6,648.19/x
  3. Step 3: Cross multiply
    14,455.78x = 21,666.93 × 6,648.19
  4. Step 4: Simplify right side
    14,455.78x = 144,045,867.36
  5. Step 5: Solve for x
    x = 144,045,867.36/14,455.78
  6. Step 6: Final answer
    x = 9,964.59

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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.