Home / 10,402.05-14,354.84-5,686.34

Finding the Fourth Proportional to 10,402.05, 14,354.84 and 5,686.34

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Solution

The fourth proportional to 10,402.05, 14,354.84 and 5,686.34 is: 7,847.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,402.05 : 14,354.84 = 5,686.34 : x
  2. Step 2: Convert to fraction form
    10,402.05/14,354.84 = 5,686.34/x
  3. Step 3: Cross multiply
    10,402.05x = 14,354.84 × 5,686.34
  4. Step 4: Simplify right side
    10,402.05x = 81,626,400.68
  5. Step 5: Solve for x
    x = 81,626,400.68/10,402.05
  6. Step 6: Final answer
    x = 7,847.14

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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.