Home / 11,451.47-15,802.02-6,415.02

Finding the Fourth Proportional to 11,451.47, 15,802.02 and 6,415.02

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Solution

The fourth proportional to 11,451.47, 15,802.02 and 6,415.02 is: 8,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.47 : 15,802.02 = 6,415.02 : x
  2. Step 2: Convert to fraction form
    11,451.47/15,802.02 = 6,415.02/x
  3. Step 3: Cross multiply
    11,451.47x = 15,802.02 × 6,415.02
  4. Step 4: Simplify right side
    11,451.47x = 101,370,274.34
  5. Step 5: Solve for x
    x = 101,370,274.34/11,451.47
  6. Step 6: Final answer
    x = 8,852.17

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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.