Home / 8,711.81-12,023.40-4,935.59

Finding the Fourth Proportional to 8,711.81, 12,023.40 and 4,935.59

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Solution

The fourth proportional to 8,711.81, 12,023.40 and 4,935.59 is: 6,811.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.81 : 12,023.40 = 4,935.59 : x
  2. Step 2: Convert to fraction form
    8,711.81/12,023.40 = 4,935.59/x
  3. Step 3: Cross multiply
    8,711.81x = 12,023.40 × 4,935.59
  4. Step 4: Simplify right side
    8,711.81x = 59,342,572.81
  5. Step 5: Solve for x
    x = 59,342,572.81/8,711.81
  6. Step 6: Final answer
    x = 6,811.74

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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.