Home / 14,870.12-20,517.39-10,090.71

Finding the Fourth Proportional to 14,870.12, 20,517.39 and 10,090.71

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Solution

The fourth proportional to 14,870.12, 20,517.39 and 10,090.71 is: 13,922.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,870.12 : 20,517.39 = 10,090.71 : x
  2. Step 2: Convert to fraction form
    14,870.12/20,517.39 = 10,090.71/x
  3. Step 3: Cross multiply
    14,870.12x = 20,517.39 × 10,090.71
  4. Step 4: Simplify right side
    14,870.12x = 207,035,032.45
  5. Step 5: Solve for x
    x = 207,035,032.45/14,870.12
  6. Step 6: Final answer
    x = 13,922.89

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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.