Home / 12,509.10-18,763.65-3,750.17

Finding the Fourth Proportional to 12,509.10, 18,763.65 and 3,750.17

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Solution

The fourth proportional to 12,509.10, 18,763.65 and 3,750.17 is: 5,625.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,509.10 : 18,763.65 = 3,750.17 : x
  2. Step 2: Convert to fraction form
    12,509.10/18,763.65 = 3,750.17/x
  3. Step 3: Cross multiply
    12,509.10x = 18,763.65 × 3,750.17
  4. Step 4: Simplify right side
    12,509.10x = 70,366,783.50
  5. Step 5: Solve for x
    x = 70,366,783.50/12,509.10
  6. Step 6: Final answer
    x = 5,625.25

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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.