Home / 13,864.58-19,139.40-8,835.70

Finding the Fourth Proportional to 13,864.58, 19,139.40 and 8,835.70

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Solution

The fourth proportional to 13,864.58, 19,139.40 and 8,835.70 is: 12,197.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.58 : 19,139.40 = 8,835.70 : x
  2. Step 2: Convert to fraction form
    13,864.58/19,139.40 = 8,835.70/x
  3. Step 3: Cross multiply
    13,864.58x = 19,139.40 × 8,835.70
  4. Step 4: Simplify right side
    13,864.58x = 169,109,996.58
  5. Step 5: Solve for x
    x = 169,109,996.58/13,864.58
  6. Step 6: Final answer
    x = 12,197.27

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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.