Home / 13,310.19-18,369.15-7,342.50

Finding the Fourth Proportional to 13,310.19, 18,369.15 and 7,342.50

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Solution

The fourth proportional to 13,310.19, 18,369.15 and 7,342.50 is: 10,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310.19 : 18,369.15 = 7,342.50 : x
  2. Step 2: Convert to fraction form
    13,310.19/18,369.15 = 7,342.50/x
  3. Step 3: Cross multiply
    13,310.19x = 18,369.15 × 7,342.50
  4. Step 4: Simplify right side
    13,310.19x = 134,875,483.88
  5. Step 5: Solve for x
    x = 134,875,483.88/13,310.19
  6. Step 6: Final answer
    x = 10,133.25

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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.