Home / 13,441.34-18,549.12-7,775.98

Finding the Fourth Proportional to 13,441.34, 18,549.12 and 7,775.98

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Solution

The fourth proportional to 13,441.34, 18,549.12 and 7,775.98 is: 10,730.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.34 : 18,549.12 = 7,775.98 : x
  2. Step 2: Convert to fraction form
    13,441.34/18,549.12 = 7,775.98/x
  3. Step 3: Cross multiply
    13,441.34x = 18,549.12 × 7,775.98
  4. Step 4: Simplify right side
    13,441.34x = 144,237,586.14
  5. Step 5: Solve for x
    x = 144,237,586.14/13,441.34
  6. Step 6: Final answer
    x = 10,730.89

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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.