Home / 11,165.61-15,408.47-6,129.91

Finding the Fourth Proportional to 11,165.61, 15,408.47 and 6,129.91

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Solution

The fourth proportional to 11,165.61, 15,408.47 and 6,129.91 is: 8,459.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165.61 : 15,408.47 = 6,129.91 : x
  2. Step 2: Convert to fraction form
    11,165.61/15,408.47 = 6,129.91/x
  3. Step 3: Cross multiply
    11,165.61x = 15,408.47 × 6,129.91
  4. Step 4: Simplify right side
    11,165.61x = 94,452,534.34
  5. Step 5: Solve for x
    x = 94,452,534.34/11,165.61
  6. Step 6: Final answer
    x = 8,459.24

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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.