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Finding the Fourth Proportional to 8,990.79, 13,490.74 and 6,062.94

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Solution

The fourth proportional to 8,990.79, 13,490.74 and 6,062.94 is: 9,097.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,990.79 : 13,490.74 = 6,062.94 : x
  2. Step 2: Convert to fraction form
    8,990.79/13,490.74 = 6,062.94/x
  3. Step 3: Cross multiply
    8,990.79x = 13,490.74 × 6,062.94
  4. Step 4: Simplify right side
    8,990.79x = 81,793,547.18
  5. Step 5: Solve for x
    x = 81,793,547.18/8,990.79
  6. Step 6: Final answer
    x = 9,097.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.