Home / 12,666.36-17,479.29-7,000.86

Finding the Fourth Proportional to 12,666.36, 17,479.29 and 7,000.86

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Solution

The fourth proportional to 12,666.36, 17,479.29 and 7,000.86 is: 9,661.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,666.36 : 17,479.29 = 7,000.86 : x
  2. Step 2: Convert to fraction form
    12,666.36/17,479.29 = 7,000.86/x
  3. Step 3: Cross multiply
    12,666.36x = 17,479.29 × 7,000.86
  4. Step 4: Simplify right side
    12,666.36x = 122,370,062.19
  5. Step 5: Solve for x
    x = 122,370,062.19/12,666.36
  6. Step 6: Final answer
    x = 9,661.03

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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.