Home / 12,465.36-17,188.80-12,281.52

Finding the Fourth Proportional to 12,465.36, 17,188.80 and 12,281.52

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Solution

The fourth proportional to 12,465.36, 17,188.80 and 12,281.52 is: 16,935.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465.36 : 17,188.80 = 12,281.52 : x
  2. Step 2: Convert to fraction form
    12,465.36/17,188.80 = 12,281.52/x
  3. Step 3: Cross multiply
    12,465.36x = 17,188.80 × 12,281.52
  4. Step 4: Simplify right side
    12,465.36x = 211,104,590.98
  5. Step 5: Solve for x
    x = 211,104,590.98/12,465.36
  6. Step 6: Final answer
    x = 16,935.30

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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.