Home / 14,270.85-19,693.80-7,897.71

Finding the Fourth Proportional to 14,270.85, 19,693.80 and 7,897.71

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Solution

The fourth proportional to 14,270.85, 19,693.80 and 7,897.71 is: 10,898.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,270.85 : 19,693.80 = 7,897.71 : x
  2. Step 2: Convert to fraction form
    14,270.85/19,693.80 = 7,897.71/x
  3. Step 3: Cross multiply
    14,270.85x = 19,693.80 × 7,897.71
  4. Step 4: Simplify right side
    14,270.85x = 155,535,921.20
  5. Step 5: Solve for x
    x = 155,535,921.20/14,270.85
  6. Step 6: Final answer
    x = 10,898.85

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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.