Home / 13,135.32-19,703.40-4,370.40

Finding the Fourth Proportional to 13,135.32, 19,703.40 and 4,370.40

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Solution

The fourth proportional to 13,135.32, 19,703.40 and 4,370.40 is: 6,555.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.32 : 19,703.40 = 4,370.40 : x
  2. Step 2: Convert to fraction form
    13,135.32/19,703.40 = 4,370.40/x
  3. Step 3: Cross multiply
    13,135.32x = 19,703.40 × 4,370.40
  4. Step 4: Simplify right side
    13,135.32x = 86,111,739.36
  5. Step 5: Solve for x
    x = 86,111,739.36/13,135.32
  6. Step 6: Final answer
    x = 6,555.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.