Home / 13,923.68-19,214.64-7,957.20

Finding the Fourth Proportional to 13,923.68, 19,214.64 and 7,957.20

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Solution

The fourth proportional to 13,923.68, 19,214.64 and 7,957.20 is: 10,980.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923.68 : 19,214.64 = 7,957.20 : x
  2. Step 2: Convert to fraction form
    13,923.68/19,214.64 = 7,957.20/x
  3. Step 3: Cross multiply
    13,923.68x = 19,214.64 × 7,957.20
  4. Step 4: Simplify right side
    13,923.68x = 152,894,733.41
  5. Step 5: Solve for x
    x = 152,894,733.41/13,923.68
  6. Step 6: Final answer
    x = 10,980.91

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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.