Home / 10,020-13,826.82-5,543.40

Finding the Fourth Proportional to 10,020, 13,826.82 and 5,543.40

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Solution

The fourth proportional to 10,020, 13,826.82 and 5,543.40 is: 7,649.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,020 : 13,826.82 = 5,543.40 : x
  2. Step 2: Convert to fraction form
    10,020/13,826.82 = 5,543.40/x
  3. Step 3: Cross multiply
    10,020x = 13,826.82 × 5,543.40
  4. Step 4: Simplify right side
    10,020x = 76,647,593.99
  5. Step 5: Solve for x
    x = 76,647,593.99/10,020
  6. Step 6: Final answer
    x = 7,649.46

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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.