Home / 13,886.04-19,155.56-9,408.26

Finding the Fourth Proportional to 13,886.04, 19,155.56 and 9,408.26

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Solution

The fourth proportional to 13,886.04, 19,155.56 and 9,408.26 is: 12,978.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886.04 : 19,155.56 = 9,408.26 : x
  2. Step 2: Convert to fraction form
    13,886.04/19,155.56 = 9,408.26/x
  3. Step 3: Cross multiply
    13,886.04x = 19,155.56 × 9,408.26
  4. Step 4: Simplify right side
    13,886.04x = 180,220,488.93
  5. Step 5: Solve for x
    x = 180,220,488.93/13,886.04
  6. Step 6: Final answer
    x = 12,978.54

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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.