Home / 14,142.07-19,516.65-7,854.45

Finding the Fourth Proportional to 14,142.07, 19,516.65 and 7,854.45

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Solution

The fourth proportional to 14,142.07, 19,516.65 and 7,854.45 is: 10,839.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,142.07 : 19,516.65 = 7,854.45 : x
  2. Step 2: Convert to fraction form
    14,142.07/19,516.65 = 7,854.45/x
  3. Step 3: Cross multiply
    14,142.07x = 19,516.65 × 7,854.45
  4. Step 4: Simplify right side
    14,142.07x = 153,292,551.59
  5. Step 5: Solve for x
    x = 153,292,551.59/14,142.07
  6. Step 6: Final answer
    x = 10,839.47

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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.