Home / 7,870.10-11,747.58-6,935.96

Finding the Fourth Proportional to 7,870.10, 11,747.58 and 6,935.96

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Solution

The fourth proportional to 7,870.10, 11,747.58 and 6,935.96 is: 10,353.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,870.10 : 11,747.58 = 6,935.96 : x
  2. Step 2: Convert to fraction form
    7,870.10/11,747.58 = 6,935.96/x
  3. Step 3: Cross multiply
    7,870.10x = 11,747.58 × 6,935.96
  4. Step 4: Simplify right side
    7,870.10x = 81,480,709.46
  5. Step 5: Solve for x
    x = 81,480,709.46/7,870.10
  6. Step 6: Final answer
    x = 10,353.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.