Home / 19,018.76-26,249.52-12,742.08

Finding the Fourth Proportional to 19,018.76, 26,249.52 and 12,742.08

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Solution

The fourth proportional to 19,018.76, 26,249.52 and 12,742.08 is: 17,586.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.76 : 26,249.52 = 12,742.08 : x
  2. Step 2: Convert to fraction form
    19,018.76/26,249.52 = 12,742.08/x
  3. Step 3: Cross multiply
    19,018.76x = 26,249.52 × 12,742.08
  4. Step 4: Simplify right side
    19,018.76x = 334,473,483.80
  5. Step 5: Solve for x
    x = 334,473,483.80/19,018.76
  6. Step 6: Final answer
    x = 17,586.50

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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.