Home / 9,579.70-14,341.20-7,125.40

Finding the Fourth Proportional to 9,579.70, 14,341.20 and 7,125.40

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Solution

The fourth proportional to 9,579.70, 14,341.20 and 7,125.40 is: 10,667.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,579.70 : 14,341.20 = 7,125.40 : x
  2. Step 2: Convert to fraction form
    9,579.70/14,341.20 = 7,125.40/x
  3. Step 3: Cross multiply
    9,579.70x = 14,341.20 × 7,125.40
  4. Step 4: Simplify right side
    9,579.70x = 102,186,786.48
  5. Step 5: Solve for x
    x = 102,186,786.48/9,579.70
  6. Step 6: Final answer
    x = 10,667.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.