Home / 13,284.20-18,332.26-7,315.58

Finding the Fourth Proportional to 13,284.20, 18,332.26 and 7,315.58

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Solution

The fourth proportional to 13,284.20, 18,332.26 and 7,315.58 is: 10,095.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.20 : 18,332.26 = 7,315.58 : x
  2. Step 2: Convert to fraction form
    13,284.20/18,332.26 = 7,315.58/x
  3. Step 3: Cross multiply
    13,284.20x = 18,332.26 × 7,315.58
  4. Step 4: Simplify right side
    13,284.20x = 134,111,114.61
  5. Step 5: Solve for x
    x = 134,111,114.61/13,284.20
  6. Step 6: Final answer
    x = 10,095.54

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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.