Home / 12,470.43-18,705.81-4,150.47

Finding the Fourth Proportional to 12,470.43, 18,705.81 and 4,150.47

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Solution

The fourth proportional to 12,470.43, 18,705.81 and 4,150.47 is: 6,225.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.43 : 18,705.81 = 4,150.47 : x
  2. Step 2: Convert to fraction form
    12,470.43/18,705.81 = 4,150.47/x
  3. Step 3: Cross multiply
    12,470.43x = 18,705.81 × 4,150.47
  4. Step 4: Simplify right side
    12,470.43x = 77,637,973.97
  5. Step 5: Solve for x
    x = 77,637,973.97/12,470.43
  6. Step 6: Final answer
    x = 6,225.77

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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.