Home / 9,045.48-12,485.22-5,320.68

Finding the Fourth Proportional to 9,045.48, 12,485.22 and 5,320.68

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Solution

The fourth proportional to 9,045.48, 12,485.22 and 5,320.68 is: 7,343.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,045.48 : 12,485.22 = 5,320.68 : x
  2. Step 2: Convert to fraction form
    9,045.48/12,485.22 = 5,320.68/x
  3. Step 3: Cross multiply
    9,045.48x = 12,485.22 × 5,320.68
  4. Step 4: Simplify right side
    9,045.48x = 66,429,860.35
  5. Step 5: Solve for x
    x = 66,429,860.35/9,045.48
  6. Step 6: Final answer
    x = 7,343.98

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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.