Home / 13,389.44-18,479.68-7,803.52

Finding the Fourth Proportional to 13,389.44, 18,479.68 and 7,803.52

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Solution

The fourth proportional to 13,389.44, 18,479.68 and 7,803.52 is: 10,770.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,389.44 : 18,479.68 = 7,803.52 : x
  2. Step 2: Convert to fraction form
    13,389.44/18,479.68 = 7,803.52/x
  3. Step 3: Cross multiply
    13,389.44x = 18,479.68 × 7,803.52
  4. Step 4: Simplify right side
    13,389.44x = 144,206,552.47
  5. Step 5: Solve for x
    x = 144,206,552.47/13,389.44
  6. Step 6: Final answer
    x = 10,770.17

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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.