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Finding the Fourth Proportional to 9,398.91, 14,015.43 and 9,314.55

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Solution

The fourth proportional to 9,398.91, 14,015.43 and 9,314.55 is: 13,889.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,398.91 : 14,015.43 = 9,314.55 : x
  2. Step 2: Convert to fraction form
    9,398.91/14,015.43 = 9,314.55/x
  3. Step 3: Cross multiply
    9,398.91x = 14,015.43 × 9,314.55
  4. Step 4: Simplify right side
    9,398.91x = 130,547,423.51
  5. Step 5: Solve for x
    x = 130,547,423.51/9,398.91
  6. Step 6: Final answer
    x = 13,889.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.