Home / 13,364.60-18,445.10-7,698.25

Finding the Fourth Proportional to 13,364.60, 18,445.10 and 7,698.25

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Solution

The fourth proportional to 13,364.60, 18,445.10 and 7,698.25 is: 10,624.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,364.60 : 18,445.10 = 7,698.25 : x
  2. Step 2: Convert to fraction form
    13,364.60/18,445.10 = 7,698.25/x
  3. Step 3: Cross multiply
    13,364.60x = 18,445.10 × 7,698.25
  4. Step 4: Simplify right side
    13,364.60x = 141,994,898.85
  5. Step 5: Solve for x
    x = 141,994,898.85/13,364.60
  6. Step 6: Final answer
    x = 10,624.70

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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.