Home / 12,599.64-17,388.36-8,343.36

Finding the Fourth Proportional to 12,599.64, 17,388.36 and 8,343.36

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Solution

The fourth proportional to 12,599.64, 17,388.36 and 8,343.36 is: 11,514.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,599.64 : 17,388.36 = 8,343.36 : x
  2. Step 2: Convert to fraction form
    12,599.64/17,388.36 = 8,343.36/x
  3. Step 3: Cross multiply
    12,599.64x = 17,388.36 × 8,343.36
  4. Step 4: Simplify right side
    12,599.64x = 145,077,347.29
  5. Step 5: Solve for x
    x = 145,077,347.29/12,599.64
  6. Step 6: Final answer
    x = 11,514.40

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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.