Home / 11,510.94-15,885.58-6,475.40

Finding the Fourth Proportional to 11,510.94, 15,885.58 and 6,475.40

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Solution

The fourth proportional to 11,510.94, 15,885.58 and 6,475.40 is: 8,936.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,510.94 : 15,885.58 = 6,475.40 : x
  2. Step 2: Convert to fraction form
    11,510.94/15,885.58 = 6,475.40/x
  3. Step 3: Cross multiply
    11,510.94x = 15,885.58 × 6,475.40
  4. Step 4: Simplify right side
    11,510.94x = 102,865,484.73
  5. Step 5: Solve for x
    x = 102,865,484.73/11,510.94
  6. Step 6: Final answer
    x = 8,936.32

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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.