Home / 15,386.37-21,233.63-8,671.62

Finding the Fourth Proportional to 15,386.37, 21,233.63 and 8,671.62

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Solution

The fourth proportional to 15,386.37, 21,233.63 and 8,671.62 is: 11,967.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.37 : 21,233.63 = 8,671.62 : x
  2. Step 2: Convert to fraction form
    15,386.37/21,233.63 = 8,671.62/x
  3. Step 3: Cross multiply
    15,386.37x = 21,233.63 × 8,671.62
  4. Step 4: Simplify right side
    15,386.37x = 184,129,927.22
  5. Step 5: Solve for x
    x = 184,129,927.22/15,386.37
  6. Step 6: Final answer
    x = 11,967.08

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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.