Home / 16,959.36-23,402.77-9,405.40

Finding the Fourth Proportional to 16,959.36, 23,402.77 and 9,405.40

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Solution

The fourth proportional to 16,959.36, 23,402.77 and 9,405.40 is: 12,978.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,959.36 : 23,402.77 = 9,405.40 : x
  2. Step 2: Convert to fraction form
    16,959.36/23,402.77 = 9,405.40/x
  3. Step 3: Cross multiply
    16,959.36x = 23,402.77 × 9,405.40
  4. Step 4: Simplify right side
    16,959.36x = 220,112,427.72
  5. Step 5: Solve for x
    x = 220,112,427.72/16,959.36
  6. Step 6: Final answer
    x = 12,978.82

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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.