Home / 15,798.72-21,802.56-8,725.58

Finding the Fourth Proportional to 15,798.72, 21,802.56 and 8,725.58

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Solution

The fourth proportional to 15,798.72, 21,802.56 and 8,725.58 is: 12,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,798.72 : 21,802.56 = 8,725.58 : x
  2. Step 2: Convert to fraction form
    15,798.72/21,802.56 = 8,725.58/x
  3. Step 3: Cross multiply
    15,798.72x = 21,802.56 × 8,725.58
  4. Step 4: Simplify right side
    15,798.72x = 190,239,981.48
  5. Step 5: Solve for x
    x = 190,239,981.48/15,798.72
  6. Step 6: Final answer
    x = 12,041.48

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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.