Home / 12,777.04-17,632.30-7,470.80

Finding the Fourth Proportional to 12,777.04, 17,632.30 and 7,470.80

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Solution

The fourth proportional to 12,777.04, 17,632.30 and 7,470.80 is: 10,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,777.04 : 17,632.30 = 7,470.80 : x
  2. Step 2: Convert to fraction form
    12,777.04/17,632.30 = 7,470.80/x
  3. Step 3: Cross multiply
    12,777.04x = 17,632.30 × 7,470.80
  4. Step 4: Simplify right side
    12,777.04x = 131,727,386.84
  5. Step 5: Solve for x
    x = 131,727,386.84/12,777.04
  6. Step 6: Final answer
    x = 10,309.70

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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.