Home / 14,985.28-20,679.24-8,697.34

Finding the Fourth Proportional to 14,985.28, 20,679.24 and 8,697.34

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Solution

The fourth proportional to 14,985.28, 20,679.24 and 8,697.34 is: 12,002.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.28 : 20,679.24 = 8,697.34 : x
  2. Step 2: Convert to fraction form
    14,985.28/20,679.24 = 8,697.34/x
  3. Step 3: Cross multiply
    14,985.28x = 20,679.24 × 8,697.34
  4. Step 4: Simplify right side
    14,985.28x = 179,854,381.22
  5. Step 5: Solve for x
    x = 179,854,381.22/14,985.28
  6. Step 6: Final answer
    x = 12,002.07

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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.