Home / 9,719.28-13,397.90-7,029.27

Finding the Fourth Proportional to 9,719.28, 13,397.90 and 7,029.27

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Solution

The fourth proportional to 9,719.28, 13,397.90 and 7,029.27 is: 9,689.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,719.28 : 13,397.90 = 7,029.27 : x
  2. Step 2: Convert to fraction form
    9,719.28/13,397.90 = 7,029.27/x
  3. Step 3: Cross multiply
    9,719.28x = 13,397.90 × 7,029.27
  4. Step 4: Simplify right side
    9,719.28x = 94,177,421.39
  5. Step 5: Solve for x
    x = 94,177,421.39/9,719.28
  6. Step 6: Final answer
    x = 9,689.75

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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.