Home / 13,854.24-19,118.70-7,885.62

Finding the Fourth Proportional to 13,854.24, 19,118.70 and 7,885.62

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Solution

The fourth proportional to 13,854.24, 19,118.70 and 7,885.62 is: 10,882.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.24 : 19,118.70 = 7,885.62 : x
  2. Step 2: Convert to fraction form
    13,854.24/19,118.70 = 7,885.62/x
  3. Step 3: Cross multiply
    13,854.24x = 19,118.70 × 7,885.62
  4. Step 4: Simplify right side
    13,854.24x = 150,762,803.09
  5. Step 5: Solve for x
    x = 150,762,803.09/13,854.24
  6. Step 6: Final answer
    x = 10,882.07

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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.