Home / 13,060.12-18,013.44-8,281.52

Finding the Fourth Proportional to 13,060.12, 18,013.44 and 8,281.52

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Solution

The fourth proportional to 13,060.12, 18,013.44 and 8,281.52 is: 11,422.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,060.12 : 18,013.44 = 8,281.52 : x
  2. Step 2: Convert to fraction form
    13,060.12/18,013.44 = 8,281.52/x
  3. Step 3: Cross multiply
    13,060.12x = 18,013.44 × 8,281.52
  4. Step 4: Simplify right side
    13,060.12x = 149,178,663.63
  5. Step 5: Solve for x
    x = 149,178,663.63/13,060.12
  6. Step 6: Final answer
    x = 11,422.46

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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.