Home / 12,838.40-17,710.08-8,852.48

Finding the Fourth Proportional to 12,838.40, 17,710.08 and 8,852.48

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Solution

The fourth proportional to 12,838.40, 17,710.08 and 8,852.48 is: 12,211.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,838.40 : 17,710.08 = 8,852.48 : x
  2. Step 2: Convert to fraction form
    12,838.40/17,710.08 = 8,852.48/x
  3. Step 3: Cross multiply
    12,838.40x = 17,710.08 × 8,852.48
  4. Step 4: Simplify right side
    12,838.40x = 156,778,129.00
  5. Step 5: Solve for x
    x = 156,778,129.00/12,838.40
  6. Step 6: Final answer
    x = 12,211.66

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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.