Home / 18,315.57-25,275.59-9,932.07

Finding the Fourth Proportional to 18,315.57, 25,275.59 and 9,932.07

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Solution

The fourth proportional to 18,315.57, 25,275.59 and 9,932.07 is: 13,706.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.57 : 25,275.59 = 9,932.07 : x
  2. Step 2: Convert to fraction form
    18,315.57/25,275.59 = 9,932.07/x
  3. Step 3: Cross multiply
    18,315.57x = 25,275.59 × 9,932.07
  4. Step 4: Simplify right side
    18,315.57x = 251,038,879.51
  5. Step 5: Solve for x
    x = 251,038,879.51/18,315.57
  6. Step 6: Final answer
    x = 13,706.31

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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.