Home / 7,557.10-10,421.64-6,299.70

Finding the Fourth Proportional to 7,557.10, 10,421.64 and 6,299.70

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Solution

The fourth proportional to 7,557.10, 10,421.64 and 6,299.70 is: 8,687.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,557.10 : 10,421.64 = 6,299.70 : x
  2. Step 2: Convert to fraction form
    7,557.10/10,421.64 = 6,299.70/x
  3. Step 3: Cross multiply
    7,557.10x = 10,421.64 × 6,299.70
  4. Step 4: Simplify right side
    7,557.10x = 65,653,205.51
  5. Step 5: Solve for x
    x = 65,653,205.51/7,557.10
  6. Step 6: Final answer
    x = 8,687.62

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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.