Home / 13,056.80-18,018.41-7,088.47

Finding the Fourth Proportional to 13,056.80, 18,018.41 and 7,088.47

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Solution

The fourth proportional to 13,056.80, 18,018.41 and 7,088.47 is: 9,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.80 : 18,018.41 = 7,088.47 : x
  2. Step 2: Convert to fraction form
    13,056.80/18,018.41 = 7,088.47/x
  3. Step 3: Cross multiply
    13,056.80x = 18,018.41 × 7,088.47
  4. Step 4: Simplify right side
    13,056.80x = 127,722,878.24
  5. Step 5: Solve for x
    x = 127,722,878.24/13,056.80
  6. Step 6: Final answer
    x = 9,782.10

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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.