Home / 13,199.31-18,215.36-7,533.95

Finding the Fourth Proportional to 13,199.31, 18,215.36 and 7,533.95

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Solution

The fourth proportional to 13,199.31, 18,215.36 and 7,533.95 is: 10,397.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,199.31 : 18,215.36 = 7,533.95 : x
  2. Step 2: Convert to fraction form
    13,199.31/18,215.36 = 7,533.95/x
  3. Step 3: Cross multiply
    13,199.31x = 18,215.36 × 7,533.95
  4. Step 4: Simplify right side
    13,199.31x = 137,233,482.73
  5. Step 5: Solve for x
    x = 137,233,482.73/13,199.31
  6. Step 6: Final answer
    x = 10,397.02

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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.