Home / 10,407.39-14,362.21-5,691.67

Finding the Fourth Proportional to 10,407.39, 14,362.21 and 5,691.67

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Solution

The fourth proportional to 10,407.39, 14,362.21 and 5,691.67 is: 7,854.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,407.39 : 14,362.21 = 5,691.67 : x
  2. Step 2: Convert to fraction form
    10,407.39/14,362.21 = 5,691.67/x
  3. Step 3: Cross multiply
    10,407.39x = 14,362.21 × 5,691.67
  4. Step 4: Simplify right side
    10,407.39x = 81,744,931.00
  5. Step 5: Solve for x
    x = 81,744,931.00/10,407.39
  6. Step 6: Final answer
    x = 7,854.51

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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.