Home / 12,677.04-18,986.40-10,470.60

Finding the Fourth Proportional to 12,677.04, 18,986.40 and 10,470.60

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Solution

The fourth proportional to 12,677.04, 18,986.40 and 10,470.60 is: 15,681.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,677.04 : 18,986.40 = 10,470.60 : x
  2. Step 2: Convert to fraction form
    12,677.04/18,986.40 = 10,470.60/x
  3. Step 3: Cross multiply
    12,677.04x = 18,986.40 × 10,470.60
  4. Step 4: Simplify right side
    12,677.04x = 198,798,999.84
  5. Step 5: Solve for x
    x = 198,798,999.84/12,677.04
  6. Step 6: Final answer
    x = 15,681.82

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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.