Home / 14,108.19-19,468.55-8,139.51

Finding the Fourth Proportional to 14,108.19, 19,468.55 and 8,139.51

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Solution

The fourth proportional to 14,108.19, 19,468.55 and 8,139.51 is: 11,232.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,108.19 : 19,468.55 = 8,139.51 : x
  2. Step 2: Convert to fraction form
    14,108.19/19,468.55 = 8,139.51/x
  3. Step 3: Cross multiply
    14,108.19x = 19,468.55 × 8,139.51
  4. Step 4: Simplify right side
    14,108.19x = 158,464,416.71
  5. Step 5: Solve for x
    x = 158,464,416.71/14,108.19
  6. Step 6: Final answer
    x = 11,232.09

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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.