Home / 13,999.23-19,319.45-7,949.16

Finding the Fourth Proportional to 13,999.23, 19,319.45 and 7,949.16

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Solution

The fourth proportional to 13,999.23, 19,319.45 and 7,949.16 is: 10,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.23 : 19,319.45 = 7,949.16 : x
  2. Step 2: Convert to fraction form
    13,999.23/19,319.45 = 7,949.16/x
  3. Step 3: Cross multiply
    13,999.23x = 19,319.45 × 7,949.16
  4. Step 4: Simplify right side
    13,999.23x = 153,573,359.42
  5. Step 5: Solve for x
    x = 153,573,359.42/13,999.23
  6. Step 6: Final answer
    x = 10,970.13

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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.