Home / 13,987.66-19,303.37-7,614.66

Finding the Fourth Proportional to 13,987.66, 19,303.37 and 7,614.66

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Solution

The fourth proportional to 13,987.66, 19,303.37 and 7,614.66 is: 10,508.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.66 : 19,303.37 = 7,614.66 : x
  2. Step 2: Convert to fraction form
    13,987.66/19,303.37 = 7,614.66/x
  3. Step 3: Cross multiply
    13,987.66x = 19,303.37 × 7,614.66
  4. Step 4: Simplify right side
    13,987.66x = 146,988,599.40
  5. Step 5: Solve for x
    x = 146,988,599.40/13,987.66
  6. Step 6: Final answer
    x = 10,508.45

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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.