Home / 8,719.33-12,032.80-4,740.45

Finding the Fourth Proportional to 8,719.33, 12,032.80 and 4,740.45

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Solution

The fourth proportional to 8,719.33, 12,032.80 and 4,740.45 is: 6,541.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.33 : 12,032.80 = 4,740.45 : x
  2. Step 2: Convert to fraction form
    8,719.33/12,032.80 = 4,740.45/x
  3. Step 3: Cross multiply
    8,719.33x = 12,032.80 × 4,740.45
  4. Step 4: Simplify right side
    8,719.33x = 57,040,886.76
  5. Step 5: Solve for x
    x = 57,040,886.76/8,719.33
  6. Step 6: Final answer
    x = 6,541.89

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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.