Home / 9,857.40-13,595.52-6,320.88

Finding the Fourth Proportional to 9,857.40, 13,595.52 and 6,320.88

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Solution

The fourth proportional to 9,857.40, 13,595.52 and 6,320.88 is: 8,717.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,857.40 : 13,595.52 = 6,320.88 : x
  2. Step 2: Convert to fraction form
    9,857.40/13,595.52 = 6,320.88/x
  3. Step 3: Cross multiply
    9,857.40x = 13,595.52 × 6,320.88
  4. Step 4: Simplify right side
    9,857.40x = 85,935,650.46
  5. Step 5: Solve for x
    x = 85,935,650.46/9,857.40
  6. Step 6: Final answer
    x = 8,717.88

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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.