Home / 13,053.90-18,014.32-7,085.52

Finding the Fourth Proportional to 13,053.90, 18,014.32 and 7,085.52

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Solution

The fourth proportional to 13,053.90, 18,014.32 and 7,085.52 is: 9,777.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,053.90 : 18,014.32 = 7,085.52 : x
  2. Step 2: Convert to fraction form
    13,053.90/18,014.32 = 7,085.52/x
  3. Step 3: Cross multiply
    13,053.90x = 18,014.32 × 7,085.52
  4. Step 4: Simplify right side
    13,053.90x = 127,640,824.65
  5. Step 5: Solve for x
    x = 127,640,824.65/13,053.90
  6. Step 6: Final answer
    x = 9,777.98

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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.