Home / 13,310.60-18,368.40-7,342.84

Finding the Fourth Proportional to 13,310.60, 18,368.40 and 7,342.84

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Solution

The fourth proportional to 13,310.60, 18,368.40 and 7,342.84 is: 10,132.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.60 : 18,368.40 = 7,342.84 : x
  2. Step 2: Convert to fraction form
    13,310.60/18,368.40 = 7,342.84/x
  3. Step 3: Cross multiply
    13,310.60x = 18,368.40 × 7,342.84
  4. Step 4: Simplify right side
    13,310.60x = 134,876,222.26
  5. Step 5: Solve for x
    x = 134,876,222.26/13,310.60
  6. Step 6: Final answer
    x = 10,132.99

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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.