Home / 13,946.52-19,244.58-7,978.92

Finding the Fourth Proportional to 13,946.52, 19,244.58 and 7,978.92

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Solution

The fourth proportional to 13,946.52, 19,244.58 and 7,978.92 is: 11,009.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,946.52 : 19,244.58 = 7,978.92 : x
  2. Step 2: Convert to fraction form
    13,946.52/19,244.58 = 7,978.92/x
  3. Step 3: Cross multiply
    13,946.52x = 19,244.58 × 7,978.92
  4. Step 4: Simplify right side
    13,946.52x = 153,550,964.25
  5. Step 5: Solve for x
    x = 153,550,964.25/13,946.52
  6. Step 6: Final answer
    x = 11,009.98

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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.