Home / 13,812.75-19,061.60-7,525.13

Finding the Fourth Proportional to 13,812.75, 19,061.60 and 7,525.13

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Solution

The fourth proportional to 13,812.75, 19,061.60 and 7,525.13 is: 10,384.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812.75 : 19,061.60 = 7,525.13 : x
  2. Step 2: Convert to fraction form
    13,812.75/19,061.60 = 7,525.13/x
  3. Step 3: Cross multiply
    13,812.75x = 19,061.60 × 7,525.13
  4. Step 4: Simplify right side
    13,812.75x = 143,440,885.07
  5. Step 5: Solve for x
    x = 143,440,885.07/13,812.75
  6. Step 6: Final answer
    x = 10,384.67

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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.