Home / 12,518.87-18,762.71-10,955.16

Finding the Fourth Proportional to 12,518.87, 18,762.71 and 10,955.16

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Solution

The fourth proportional to 12,518.87, 18,762.71 and 10,955.16 is: 16,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,518.87 : 18,762.71 = 10,955.16 : x
  2. Step 2: Convert to fraction form
    12,518.87/18,762.71 = 10,955.16/x
  3. Step 3: Cross multiply
    12,518.87x = 18,762.71 × 10,955.16
  4. Step 4: Simplify right side
    12,518.87x = 205,548,435.31
  5. Step 5: Solve for x
    x = 205,548,435.31/12,518.87
  6. Step 6: Final answer
    x = 16,419.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.