Home / 11,451.02-15,802.13-6,415.45

Finding the Fourth Proportional to 11,451.02, 15,802.13 and 6,415.45

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Solution

The fourth proportional to 11,451.02, 15,802.13 and 6,415.45 is: 8,853.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.02 : 15,802.13 = 6,415.45 : x
  2. Step 2: Convert to fraction form
    11,451.02/15,802.13 = 6,415.45/x
  3. Step 3: Cross multiply
    11,451.02x = 15,802.13 × 6,415.45
  4. Step 4: Simplify right side
    11,451.02x = 101,377,774.91
  5. Step 5: Solve for x
    x = 101,377,774.91/11,451.02
  6. Step 6: Final answer
    x = 8,853.17

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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.