Home / 13,220.16-19,825.08-6,641.76

Finding the Fourth Proportional to 13,220.16, 19,825.08 and 6,641.76

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Solution

The fourth proportional to 13,220.16, 19,825.08 and 6,641.76 is: 9,960.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.16 : 19,825.08 = 6,641.76 : x
  2. Step 2: Convert to fraction form
    13,220.16/19,825.08 = 6,641.76/x
  3. Step 3: Cross multiply
    13,220.16x = 19,825.08 × 6,641.76
  4. Step 4: Simplify right side
    13,220.16x = 131,673,423.34
  5. Step 5: Solve for x
    x = 131,673,423.34/13,220.16
  6. Step 6: Final answer
    x = 9,960.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.