Home / 13,400.33-18,492.18-7,431.04

Finding the Fourth Proportional to 13,400.33, 18,492.18 and 7,431.04

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Solution

The fourth proportional to 13,400.33, 18,492.18 and 7,431.04 is: 10,254.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400.33 : 18,492.18 = 7,431.04 : x
  2. Step 2: Convert to fraction form
    13,400.33/18,492.18 = 7,431.04/x
  3. Step 3: Cross multiply
    13,400.33x = 18,492.18 × 7,431.04
  4. Step 4: Simplify right side
    13,400.33x = 137,416,036.81
  5. Step 5: Solve for x
    x = 137,416,036.81/13,400.33
  6. Step 6: Final answer
    x = 10,254.68

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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.