Home / 10,140.04-15,205.20-4,293.46

Finding the Fourth Proportional to 10,140.04, 15,205.20 and 4,293.46

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Solution

The fourth proportional to 10,140.04, 15,205.20 and 4,293.46 is: 6,438.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.04 : 15,205.20 = 4,293.46 : x
  2. Step 2: Convert to fraction form
    10,140.04/15,205.20 = 4,293.46/x
  3. Step 3: Cross multiply
    10,140.04x = 15,205.20 × 4,293.46
  4. Step 4: Simplify right side
    10,140.04x = 65,282,917.99
  5. Step 5: Solve for x
    x = 65,282,917.99/10,140.04
  6. Step 6: Final answer
    x = 6,438.13

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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.