Home / 12,646.29-17,423.40-8,814.33

Finding the Fourth Proportional to 12,646.29, 17,423.40 and 8,814.33

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Solution

The fourth proportional to 12,646.29, 17,423.40 and 8,814.33 is: 12,143.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,646.29 : 17,423.40 = 8,814.33 : x
  2. Step 2: Convert to fraction form
    12,646.29/17,423.40 = 8,814.33/x
  3. Step 3: Cross multiply
    12,646.29x = 17,423.40 × 8,814.33
  4. Step 4: Simplify right side
    12,646.29x = 153,575,597.32
  5. Step 5: Solve for x
    x = 153,575,597.32/12,646.29
  6. Step 6: Final answer
    x = 12,143.93

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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.