Home / 13,927.49-19,221.31-7,960.01

Finding the Fourth Proportional to 13,927.49, 19,221.31 and 7,960.01

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Solution

The fourth proportional to 13,927.49, 19,221.31 and 7,960.01 is: 10,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,927.49 : 19,221.31 = 7,960.01 : x
  2. Step 2: Convert to fraction form
    13,927.49/19,221.31 = 7,960.01/x
  3. Step 3: Cross multiply
    13,927.49x = 19,221.31 × 7,960.01
  4. Step 4: Simplify right side
    13,927.49x = 153,001,819.81
  5. Step 5: Solve for x
    x = 153,001,819.81/13,927.49
  6. Step 6: Final answer
    x = 10,985.60

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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.