Home / 13,283.60-18,331.31-7,315.58

Finding the Fourth Proportional to 13,283.60, 18,331.31 and 7,315.58

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Solution

The fourth proportional to 13,283.60, 18,331.31 and 7,315.58 is: 10,095.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,283.60 : 18,331.31 = 7,315.58 : x
  2. Step 2: Convert to fraction form
    13,283.60/18,331.31 = 7,315.58/x
  3. Step 3: Cross multiply
    13,283.60x = 18,331.31 × 7,315.58
  4. Step 4: Simplify right side
    13,283.60x = 134,104,228.93
  5. Step 5: Solve for x
    x = 134,104,228.93/13,283.60
  6. Step 6: Final answer
    x = 10,095.48

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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.