Home / 13,354.06-18,428.52-7,385.62

Finding the Fourth Proportional to 13,354.06, 18,428.52 and 7,385.62

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Solution

The fourth proportional to 13,354.06, 18,428.52 and 7,385.62 is: 10,192.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.06 : 18,428.52 = 7,385.62 : x
  2. Step 2: Convert to fraction form
    13,354.06/18,428.52 = 7,385.62/x
  3. Step 3: Cross multiply
    13,354.06x = 18,428.52 × 7,385.62
  4. Step 4: Simplify right side
    13,354.06x = 136,106,045.88
  5. Step 5: Solve for x
    x = 136,106,045.88/13,354.06
  6. Step 6: Final answer
    x = 10,192.11

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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.