Home / 7,856.52-10,838.28-4,871.26

Finding the Fourth Proportional to 7,856.52, 10,838.28 and 4,871.26

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Solution

The fourth proportional to 7,856.52, 10,838.28 and 4,871.26 is: 6,720.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,856.52 : 10,838.28 = 4,871.26 : x
  2. Step 2: Convert to fraction form
    7,856.52/10,838.28 = 4,871.26/x
  3. Step 3: Cross multiply
    7,856.52x = 10,838.28 × 4,871.26
  4. Step 4: Simplify right side
    7,856.52x = 52,796,079.83
  5. Step 5: Solve for x
    x = 52,796,079.83/7,856.52
  6. Step 6: Final answer
    x = 6,720.03

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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.