Home / 13,830.70-19,087.50-7,864.24

Finding the Fourth Proportional to 13,830.70, 19,087.50 and 7,864.24

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Solution

The fourth proportional to 13,830.70, 19,087.50 and 7,864.24 is: 10,853.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.70 : 19,087.50 = 7,864.24 : x
  2. Step 2: Convert to fraction form
    13,830.70/19,087.50 = 7,864.24/x
  3. Step 3: Cross multiply
    13,830.70x = 19,087.50 × 7,864.24
  4. Step 4: Simplify right side
    13,830.70x = 150,108,681
  5. Step 5: Solve for x
    x = 150,108,681/13,830.70
  6. Step 6: Final answer
    x = 10,853.30

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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.