Home / 13,988.39-19,303.36-7,614.99

Finding the Fourth Proportional to 13,988.39, 19,303.36 and 7,614.99

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Solution

The fourth proportional to 13,988.39, 19,303.36 and 7,614.99 is: 10,508.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,988.39 : 19,303.36 = 7,614.99 : x
  2. Step 2: Convert to fraction form
    13,988.39/19,303.36 = 7,614.99/x
  3. Step 3: Cross multiply
    13,988.39x = 19,303.36 × 7,614.99
  4. Step 4: Simplify right side
    13,988.39x = 146,994,874.33
  5. Step 5: Solve for x
    x = 146,994,874.33/13,988.39
  6. Step 6: Final answer
    x = 10,508.35

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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.