Home / 21,367.64-29,487.59-11,807.49

Finding the Fourth Proportional to 21,367.64, 29,487.59 and 11,807.49

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Solution

The fourth proportional to 21,367.64, 29,487.59 and 11,807.49 is: 16,294.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.64 : 29,487.59 = 11,807.49 : x
  2. Step 2: Convert to fraction form
    21,367.64/29,487.59 = 11,807.49/x
  3. Step 3: Cross multiply
    21,367.64x = 29,487.59 × 11,807.49
  4. Step 4: Simplify right side
    21,367.64x = 348,174,291.29
  5. Step 5: Solve for x
    x = 348,174,291.29/21,367.64
  6. Step 6: Final answer
    x = 16,294.47

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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.