Home / 13,558.48-18,711.88-7,590.04

Finding the Fourth Proportional to 13,558.48, 18,711.88 and 7,590.04

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Solution

The fourth proportional to 13,558.48, 18,711.88 and 7,590.04 is: 10,474.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.48 : 18,711.88 = 7,590.04 : x
  2. Step 2: Convert to fraction form
    13,558.48/18,711.88 = 7,590.04/x
  3. Step 3: Cross multiply
    13,558.48x = 18,711.88 × 7,590.04
  4. Step 4: Simplify right side
    13,558.48x = 142,023,917.68
  5. Step 5: Solve for x
    x = 142,023,917.68/13,558.48
  6. Step 6: Final answer
    x = 10,474.91

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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.