Home / 15,534.08-21,436.38-8,460.48

Finding the Fourth Proportional to 15,534.08, 21,436.38 and 8,460.48

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Solution

The fourth proportional to 15,534.08, 21,436.38 and 8,460.48 is: 11,675.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,534.08 : 21,436.38 = 8,460.48 : x
  2. Step 2: Convert to fraction form
    15,534.08/21,436.38 = 8,460.48/x
  3. Step 3: Cross multiply
    15,534.08x = 21,436.38 × 8,460.48
  4. Step 4: Simplify right side
    15,534.08x = 181,362,064.26
  5. Step 5: Solve for x
    x = 181,362,064.26/15,534.08
  6. Step 6: Final answer
    x = 11,675.11

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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.