Home / 15,867.06-21,898.89-9,151.39

Finding the Fourth Proportional to 15,867.06, 21,898.89 and 9,151.39

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Solution

The fourth proportional to 15,867.06, 21,898.89 and 9,151.39 is: 12,630.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,867.06 : 21,898.89 = 9,151.39 : x
  2. Step 2: Convert to fraction form
    15,867.06/21,898.89 = 9,151.39/x
  3. Step 3: Cross multiply
    15,867.06x = 21,898.89 × 9,151.39
  4. Step 4: Simplify right side
    15,867.06x = 200,405,127.71
  5. Step 5: Solve for x
    x = 200,405,127.71/15,867.06
  6. Step 6: Final answer
    x = 12,630.26

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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.