Home / 13,812.84-19,061.68-7,525.20

Finding the Fourth Proportional to 13,812.84, 19,061.68 and 7,525.20

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Solution

The fourth proportional to 13,812.84, 19,061.68 and 7,525.20 is: 10,384.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.84 : 19,061.68 = 7,525.20 : x
  2. Step 2: Convert to fraction form
    13,812.84/19,061.68 = 7,525.20/x
  3. Step 3: Cross multiply
    13,812.84x = 19,061.68 × 7,525.20
  4. Step 4: Simplify right side
    13,812.84x = 143,442,954.34
  5. Step 5: Solve for x
    x = 143,442,954.34/13,812.84
  6. Step 6: Final answer
    x = 10,384.75

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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.