Home / 15,317.20-21,141.03-9,347.59

Finding the Fourth Proportional to 15,317.20, 21,141.03 and 9,347.59

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Solution

The fourth proportional to 15,317.20, 21,141.03 and 9,347.59 is: 12,901.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,317.20 : 21,141.03 = 9,347.59 : x
  2. Step 2: Convert to fraction form
    15,317.20/21,141.03 = 9,347.59/x
  3. Step 3: Cross multiply
    15,317.20x = 21,141.03 × 9,347.59
  4. Step 4: Simplify right side
    15,317.20x = 197,617,680.62
  5. Step 5: Solve for x
    x = 197,617,680.62/15,317.20
  6. Step 6: Final answer
    x = 12,901.68

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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.