Home / 15,534.34-21,437.57-8,460.82

Finding the Fourth Proportional to 15,534.34, 21,437.57 and 8,460.82

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Solution

The fourth proportional to 15,534.34, 21,437.57 and 8,460.82 is: 11,676.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,534.34 : 21,437.57 = 8,460.82 : x
  2. Step 2: Convert to fraction form
    15,534.34/21,437.57 = 8,460.82/x
  3. Step 3: Cross multiply
    15,534.34x = 21,437.57 × 8,460.82
  4. Step 4: Simplify right side
    15,534.34x = 181,379,421.01
  5. Step 5: Solve for x
    x = 181,379,421.01/15,534.34
  6. Step 6: Final answer
    x = 11,676.03

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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.