Home / 9,864.63-13,613.18-5,672.88

Finding the Fourth Proportional to 9,864.63, 13,613.18 and 5,672.88

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Solution

The fourth proportional to 9,864.63, 13,613.18 and 5,672.88 is: 7,828.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,864.63 : 13,613.18 = 5,672.88 : x
  2. Step 2: Convert to fraction form
    9,864.63/13,613.18 = 5,672.88/x
  3. Step 3: Cross multiply
    9,864.63x = 13,613.18 × 5,672.88
  4. Step 4: Simplify right side
    9,864.63x = 77,225,936.56
  5. Step 5: Solve for x
    x = 77,225,936.56/9,864.63
  6. Step 6: Final answer
    x = 7,828.57

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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.