Home / 14,285.59-19,713.68-7,911.93

Finding the Fourth Proportional to 14,285.59, 19,713.68 and 7,911.93

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Solution

The fourth proportional to 14,285.59, 19,713.68 and 7,911.93 is: 10,918.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,285.59 : 19,713.68 = 7,911.93 : x
  2. Step 2: Convert to fraction form
    14,285.59/19,713.68 = 7,911.93/x
  3. Step 3: Cross multiply
    14,285.59x = 19,713.68 × 7,911.93
  4. Step 4: Simplify right side
    14,285.59x = 155,973,209.35
  5. Step 5: Solve for x
    x = 155,973,209.35/14,285.59
  6. Step 6: Final answer
    x = 10,918.22

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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.