Home / 12,735.36-18,948.96-12,417.92

Finding the Fourth Proportional to 12,735.36, 18,948.96 and 12,417.92

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Solution

The fourth proportional to 12,735.36, 18,948.96 and 12,417.92 is: 18,476.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,735.36 : 18,948.96 = 12,417.92 : x
  2. Step 2: Convert to fraction form
    12,735.36/18,948.96 = 12,417.92/x
  3. Step 3: Cross multiply
    12,735.36x = 18,948.96 × 12,417.92
  4. Step 4: Simplify right side
    12,735.36x = 235,306,669.36
  5. Step 5: Solve for x
    x = 235,306,669.36/12,735.36
  6. Step 6: Final answer
    x = 18,476.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.