Home / 7,156.08-9,875.70-4,012.56

Finding the Fourth Proportional to 7,156.08, 9,875.70 and 4,012.56

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Solution

The fourth proportional to 7,156.08, 9,875.70 and 4,012.56 is: 5,537.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,156.08 : 9,875.70 = 4,012.56 : x
  2. Step 2: Convert to fraction form
    7,156.08/9,875.70 = 4,012.56/x
  3. Step 3: Cross multiply
    7,156.08x = 9,875.70 × 4,012.56
  4. Step 4: Simplify right side
    7,156.08x = 39,626,838.79
  5. Step 5: Solve for x
    x = 39,626,838.79/7,156.08
  6. Step 6: Final answer
    x = 5,537.51

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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.