Home / 9,140.76-13,709.08-4,205.65

Finding the Fourth Proportional to 9,140.76, 13,709.08 and 4,205.65

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Solution

The fourth proportional to 9,140.76, 13,709.08 and 4,205.65 is: 6,307.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.76 : 13,709.08 = 4,205.65 : x
  2. Step 2: Convert to fraction form
    9,140.76/13,709.08 = 4,205.65/x
  3. Step 3: Cross multiply
    9,140.76x = 13,709.08 × 4,205.65
  4. Step 4: Simplify right side
    9,140.76x = 57,655,592.30
  5. Step 5: Solve for x
    x = 57,655,592.30/9,140.76
  6. Step 6: Final answer
    x = 6,307.53

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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.