Home / 13,053.12-18,012.80-7,084.58

Finding the Fourth Proportional to 13,053.12, 18,012.80 and 7,084.58

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Solution

The fourth proportional to 13,053.12, 18,012.80 and 7,084.58 is: 9,776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.12 : 18,012.80 = 7,084.58 : x
  2. Step 2: Convert to fraction form
    13,053.12/18,012.80 = 7,084.58/x
  3. Step 3: Cross multiply
    13,053.12x = 18,012.80 × 7,084.58
  4. Step 4: Simplify right side
    13,053.12x = 127,613,122.62
  5. Step 5: Solve for x
    x = 127,613,122.62/13,053.12
  6. Step 6: Final answer
    x = 9,776.45

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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.