Home / 18,491.86-25,518.95-10,534.15

Finding the Fourth Proportional to 18,491.86, 25,518.95 and 10,534.15

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Solution

The fourth proportional to 18,491.86, 25,518.95 and 10,534.15 is: 14,537.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,491.86 : 25,518.95 = 10,534.15 : x
  2. Step 2: Convert to fraction form
    18,491.86/25,518.95 = 10,534.15/x
  3. Step 3: Cross multiply
    18,491.86x = 25,518.95 × 10,534.15
  4. Step 4: Simplify right side
    18,491.86x = 268,820,447.14
  5. Step 5: Solve for x
    x = 268,820,447.14/18,491.86
  6. Step 6: Final answer
    x = 14,537.23

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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.