Home / 19,090.76-26,339.86-12,376.68

Finding the Fourth Proportional to 19,090.76, 26,339.86 and 12,376.68

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Solution

The fourth proportional to 19,090.76, 26,339.86 and 12,376.68 is: 17,076.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,090.76 : 26,339.86 = 12,376.68 : x
  2. Step 2: Convert to fraction form
    19,090.76/26,339.86 = 12,376.68/x
  3. Step 3: Cross multiply
    19,090.76x = 26,339.86 × 12,376.68
  4. Step 4: Simplify right side
    19,090.76x = 326,000,018.46
  5. Step 5: Solve for x
    x = 326,000,018.46/19,090.76
  6. Step 6: Final answer
    x = 17,076.32

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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.