Home / 9,489.21-13,089.93-5,710.10

Finding the Fourth Proportional to 9,489.21, 13,089.93 and 5,710.10

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Solution

The fourth proportional to 9,489.21, 13,089.93 and 5,710.10 is: 7,876.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,489.21 : 13,089.93 = 5,710.10 : x
  2. Step 2: Convert to fraction form
    9,489.21/13,089.93 = 5,710.10/x
  3. Step 3: Cross multiply
    9,489.21x = 13,089.93 × 5,710.10
  4. Step 4: Simplify right side
    9,489.21x = 74,744,809.29
  5. Step 5: Solve for x
    x = 74,744,809.29/9,489.21
  6. Step 6: Final answer
    x = 7,876.82

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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.