Home / 13,260.24-18,299.12-7,955.01

Finding the Fourth Proportional to 13,260.24, 18,299.12 and 7,955.01

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Solution

The fourth proportional to 13,260.24, 18,299.12 and 7,955.01 is: 10,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,260.24 : 18,299.12 = 7,955.01 : x
  2. Step 2: Convert to fraction form
    13,260.24/18,299.12 = 7,955.01/x
  3. Step 3: Cross multiply
    13,260.24x = 18,299.12 × 7,955.01
  4. Step 4: Simplify right side
    13,260.24x = 145,569,642.82
  5. Step 5: Solve for x
    x = 145,569,642.82/13,260.24
  6. Step 6: Final answer
    x = 10,977.90

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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.