Home / 13,782.96-19,020.12-7,495.20

Finding the Fourth Proportional to 13,782.96, 19,020.12 and 7,495.20

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Solution

The fourth proportional to 13,782.96, 19,020.12 and 7,495.20 is: 10,343.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.96 : 19,020.12 = 7,495.20 : x
  2. Step 2: Convert to fraction form
    13,782.96/19,020.12 = 7,495.20/x
  3. Step 3: Cross multiply
    13,782.96x = 19,020.12 × 7,495.20
  4. Step 4: Simplify right side
    13,782.96x = 142,559,603.42
  5. Step 5: Solve for x
    x = 142,559,603.42/13,782.96
  6. Step 6: Final answer
    x = 10,343.18

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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.