Home / 11,130.46-15,360.77-6,415.04

Finding the Fourth Proportional to 11,130.46, 15,360.77 and 6,415.04

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Solution

The fourth proportional to 11,130.46, 15,360.77 and 6,415.04 is: 8,853.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,130.46 : 15,360.77 = 6,415.04 : x
  2. Step 2: Convert to fraction form
    11,130.46/15,360.77 = 6,415.04/x
  3. Step 3: Cross multiply
    11,130.46x = 15,360.77 × 6,415.04
  4. Step 4: Simplify right side
    11,130.46x = 98,540,008.42
  5. Step 5: Solve for x
    x = 98,540,008.42/11,130.46
  6. Step 6: Final answer
    x = 8,853.19

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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.