Home / 13,901.70-19,187.31-8,864.70

Finding the Fourth Proportional to 13,901.70, 19,187.31 and 8,864.70

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Solution

The fourth proportional to 13,901.70, 19,187.31 and 8,864.70 is: 12,235.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,901.70 : 19,187.31 = 8,864.70 : x
  2. Step 2: Convert to fraction form
    13,901.70/19,187.31 = 8,864.70/x
  3. Step 3: Cross multiply
    13,901.70x = 19,187.31 × 8,864.70
  4. Step 4: Simplify right side
    13,901.70x = 170,089,746.96
  5. Step 5: Solve for x
    x = 170,089,746.96/13,901.70
  6. Step 6: Final answer
    x = 12,235.18

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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.