Home / 14,085.16-21,120.45-7,509.58

Finding the Fourth Proportional to 14,085.16, 21,120.45 and 7,509.58

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Solution

The fourth proportional to 14,085.16, 21,120.45 and 7,509.58 is: 11,260.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,085.16 : 21,120.45 = 7,509.58 : x
  2. Step 2: Convert to fraction form
    14,085.16/21,120.45 = 7,509.58/x
  3. Step 3: Cross multiply
    14,085.16x = 21,120.45 × 7,509.58
  4. Step 4: Simplify right side
    14,085.16x = 158,605,708.91
  5. Step 5: Solve for x
    x = 158,605,708.91/14,085.16
  6. Step 6: Final answer
    x = 11,260.48

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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.