Home / 15,470.94-21,350.95-8,756.54

Finding the Fourth Proportional to 15,470.94, 21,350.95 and 8,756.54

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Solution

The fourth proportional to 15,470.94, 21,350.95 and 8,756.54 is: 12,084.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.94 : 21,350.95 = 8,756.54 : x
  2. Step 2: Convert to fraction form
    15,470.94/21,350.95 = 8,756.54/x
  3. Step 3: Cross multiply
    15,470.94x = 21,350.95 × 8,756.54
  4. Step 4: Simplify right side
    15,470.94x = 186,960,447.71
  5. Step 5: Solve for x
    x = 186,960,447.71/15,470.94
  6. Step 6: Final answer
    x = 12,084.62

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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.