Home / 13,461.98-18,579.80-7,795.76

Finding the Fourth Proportional to 13,461.98, 18,579.80 and 7,795.76

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Solution

The fourth proportional to 13,461.98, 18,579.80 and 7,795.76 is: 10,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,461.98 : 18,579.80 = 7,795.76 : x
  2. Step 2: Convert to fraction form
    13,461.98/18,579.80 = 7,795.76/x
  3. Step 3: Cross multiply
    13,461.98x = 18,579.80 × 7,795.76
  4. Step 4: Simplify right side
    13,461.98x = 144,843,622.67
  5. Step 5: Solve for x
    x = 144,843,622.67/13,461.98
  6. Step 6: Final answer
    x = 10,759.46

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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.