Home / 14,055.80-21,086.40-7,130.30

Finding the Fourth Proportional to 14,055.80, 21,086.40 and 7,130.30

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Solution

The fourth proportional to 14,055.80, 21,086.40 and 7,130.30 is: 10,696.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,055.80 : 21,086.40 = 7,130.30 : x
  2. Step 2: Convert to fraction form
    14,055.80/21,086.40 = 7,130.30/x
  3. Step 3: Cross multiply
    14,055.80x = 21,086.40 × 7,130.30
  4. Step 4: Simplify right side
    14,055.80x = 150,352,357.92
  5. Step 5: Solve for x
    x = 150,352,357.92/14,055.80
  6. Step 6: Final answer
    x = 10,696.82

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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.