Home / 13,296.60-18,347.85-7,629.84

Finding the Fourth Proportional to 13,296.60, 18,347.85 and 7,629.84

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Solution

The fourth proportional to 13,296.60, 18,347.85 and 7,629.84 is: 10,528.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.60 : 18,347.85 = 7,629.84 : x
  2. Step 2: Convert to fraction form
    13,296.60/18,347.85 = 7,629.84/x
  3. Step 3: Cross multiply
    13,296.60x = 18,347.85 × 7,629.84
  4. Step 4: Simplify right side
    13,296.60x = 139,991,159.84
  5. Step 5: Solve for x
    x = 139,991,159.84/13,296.60
  6. Step 6: Final answer
    x = 10,528.34

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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.