Home / 13,987.40-19,303.02-7,614.42

Finding the Fourth Proportional to 13,987.40, 19,303.02 and 7,614.42

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Solution

The fourth proportional to 13,987.40, 19,303.02 and 7,614.42 is: 10,508.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.40 : 19,303.02 = 7,614.42 : x
  2. Step 2: Convert to fraction form
    13,987.40/19,303.02 = 7,614.42/x
  3. Step 3: Cross multiply
    13,987.40x = 19,303.02 × 7,614.42
  4. Step 4: Simplify right side
    13,987.40x = 146,981,301.55
  5. Step 5: Solve for x
    x = 146,981,301.55/13,987.40
  6. Step 6: Final answer
    x = 10,508.12

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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.