Home / 13,155.30-19,733.16-4,390.26

Finding the Fourth Proportional to 13,155.30, 19,733.16 and 4,390.26

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Solution

The fourth proportional to 13,155.30, 19,733.16 and 4,390.26 is: 6,585.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,155.30 : 19,733.16 = 4,390.26 : x
  2. Step 2: Convert to fraction form
    13,155.30/19,733.16 = 4,390.26/x
  3. Step 3: Cross multiply
    13,155.30x = 19,733.16 × 4,390.26
  4. Step 4: Simplify right side
    13,155.30x = 86,633,703.02
  5. Step 5: Solve for x
    x = 86,633,703.02/13,155.30
  6. Step 6: Final answer
    x = 6,585.46

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1.5x scale

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.