Home / 19,484.76-26,897.49-12,420.48

Finding the Fourth Proportional to 19,484.76, 26,897.49 and 12,420.48

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Solution

The fourth proportional to 19,484.76, 26,897.49 and 12,420.48 is: 17,145.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,484.76 : 26,897.49 = 12,420.48 : x
  2. Step 2: Convert to fraction form
    19,484.76/26,897.49 = 12,420.48/x
  3. Step 3: Cross multiply
    19,484.76x = 26,897.49 × 12,420.48
  4. Step 4: Simplify right side
    19,484.76x = 334,079,736.60
  5. Step 5: Solve for x
    x = 334,079,736.60/19,484.76
  6. Step 6: Final answer
    x = 17,145.69

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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.