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Finding the Fourth Proportional to 40,509.07, 60,763.60 and 12,807.07

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Solution

The fourth proportional to 40,509.07, 60,763.60 and 12,807.07 is: 19,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,509.07 : 60,763.60 = 12,807.07 : x
  2. Step 2: Convert to fraction form
    40,509.07/60,763.60 = 12,807.07/x
  3. Step 3: Cross multiply
    40,509.07x = 60,763.60 × 12,807.07
  4. Step 4: Simplify right side
    40,509.07x = 778,203,374.83
  5. Step 5: Solve for x
    x = 778,203,374.83/40,509.07
  6. Step 6: Final answer
    x = 19,210.60

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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.