Home / 8,723.40-12,038.34-5,185.92

Finding the Fourth Proportional to 8,723.40, 12,038.34 and 5,185.92

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Solution

The fourth proportional to 8,723.40, 12,038.34 and 5,185.92 is: 7,156.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,723.40 : 12,038.34 = 5,185.92 : x
  2. Step 2: Convert to fraction form
    8,723.40/12,038.34 = 5,185.92/x
  3. Step 3: Cross multiply
    8,723.40x = 12,038.34 × 5,185.92
  4. Step 4: Simplify right side
    8,723.40x = 62,429,868.17
  5. Step 5: Solve for x
    x = 62,429,868.17/8,723.40
  6. Step 6: Final answer
    x = 7,156.60

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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.