Home / 10,419.84-15,625.68-4,572.40

Finding the Fourth Proportional to 10,419.84, 15,625.68 and 4,572.40

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Solution

The fourth proportional to 10,419.84, 15,625.68 and 4,572.40 is: 6,856.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.84 : 15,625.68 = 4,572.40 : x
  2. Step 2: Convert to fraction form
    10,419.84/15,625.68 = 4,572.40/x
  3. Step 3: Cross multiply
    10,419.84x = 15,625.68 × 4,572.40
  4. Step 4: Simplify right side
    10,419.84x = 71,446,859.23
  5. Step 5: Solve for x
    x = 71,446,859.23/10,419.84
  6. Step 6: Final answer
    x = 6,856.81

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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.