Home / 7,715.61-11,573.34-4,426.35

Finding the Fourth Proportional to 7,715.61, 11,573.34 and 4,426.35

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Solution

The fourth proportional to 7,715.61, 11,573.34 and 4,426.35 is: 6,639.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,715.61 : 11,573.34 = 4,426.35 : x
  2. Step 2: Convert to fraction form
    7,715.61/11,573.34 = 4,426.35/x
  3. Step 3: Cross multiply
    7,715.61x = 11,573.34 × 4,426.35
  4. Step 4: Simplify right side
    7,715.61x = 51,227,653.51
  5. Step 5: Solve for x
    x = 51,227,653.51/7,715.61
  6. Step 6: Final answer
    x = 6,639.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.