Home / 7,089.59-9,787.47-4,971.62

Finding the Fourth Proportional to 7,089.59, 9,787.47 and 4,971.62

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Solution

The fourth proportional to 7,089.59, 9,787.47 and 4,971.62 is: 6,863.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,089.59 : 9,787.47 = 4,971.62 : x
  2. Step 2: Convert to fraction form
    7,089.59/9,787.47 = 4,971.62/x
  3. Step 3: Cross multiply
    7,089.59x = 9,787.47 × 4,971.62
  4. Step 4: Simplify right side
    7,089.59x = 48,659,581.60
  5. Step 5: Solve for x
    x = 48,659,581.60/7,089.59
  6. Step 6: Final answer
    x = 6,863.53

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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.