Home / 8,642.33-11,925.65-4,813.68

Finding the Fourth Proportional to 8,642.33, 11,925.65 and 4,813.68

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Solution

The fourth proportional to 8,642.33, 11,925.65 and 4,813.68 is: 6,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,642.33 : 11,925.65 = 4,813.68 : x
  2. Step 2: Convert to fraction form
    8,642.33/11,925.65 = 4,813.68/x
  3. Step 3: Cross multiply
    8,642.33x = 11,925.65 × 4,813.68
  4. Step 4: Simplify right side
    8,642.33x = 57,406,252.57
  5. Step 5: Solve for x
    x = 57,406,252.57/8,642.33
  6. Step 6: Final answer
    x = 6,642.45

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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.