Home / 16,275.48-22,448.70-9,991.32

Finding the Fourth Proportional to 16,275.48, 22,448.70 and 9,991.32

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Solution

The fourth proportional to 16,275.48, 22,448.70 and 9,991.32 is: 13,780.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,275.48 : 22,448.70 = 9,991.32 : x
  2. Step 2: Convert to fraction form
    16,275.48/22,448.70 = 9,991.32/x
  3. Step 3: Cross multiply
    16,275.48x = 22,448.70 × 9,991.32
  4. Step 4: Simplify right side
    16,275.48x = 224,292,145.28
  5. Step 5: Solve for x
    x = 224,292,145.28/16,275.48
  6. Step 6: Final answer
    x = 13,780.98

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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.