Home / 13,315.24-18,376.02-7,727.08

Finding the Fourth Proportional to 13,315.24, 18,376.02 and 7,727.08

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Solution

The fourth proportional to 13,315.24, 18,376.02 and 7,727.08 is: 10,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,315.24 : 18,376.02 = 7,727.08 : x
  2. Step 2: Convert to fraction form
    13,315.24/18,376.02 = 7,727.08/x
  3. Step 3: Cross multiply
    13,315.24x = 18,376.02 × 7,727.08
  4. Step 4: Simplify right side
    13,315.24x = 141,992,976.62
  5. Step 5: Solve for x
    x = 141,992,976.62/13,315.24
  6. Step 6: Final answer
    x = 10,663.94

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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.