Home / 11,670.10-16,106.30-7,421.58

Finding the Fourth Proportional to 11,670.10, 16,106.30 and 7,421.58

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Solution

The fourth proportional to 11,670.10, 16,106.30 and 7,421.58 is: 10,242.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,670.10 : 16,106.30 = 7,421.58 : x
  2. Step 2: Convert to fraction form
    11,670.10/16,106.30 = 7,421.58/x
  3. Step 3: Cross multiply
    11,670.10x = 16,106.30 × 7,421.58
  4. Step 4: Simplify right side
    11,670.10x = 119,534,193.95
  5. Step 5: Solve for x
    x = 119,534,193.95/11,670.10
  6. Step 6: Final answer
    x = 10,242.77

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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.