Home / 9,478.28-13,084.70-7,348.98

Finding the Fourth Proportional to 9,478.28, 13,084.70 and 7,348.98

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Solution

The fourth proportional to 9,478.28, 13,084.70 and 7,348.98 is: 10,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,478.28 : 13,084.70 = 7,348.98 : x
  2. Step 2: Convert to fraction form
    9,478.28/13,084.70 = 7,348.98/x
  3. Step 3: Cross multiply
    9,478.28x = 13,084.70 × 7,348.98
  4. Step 4: Simplify right side
    9,478.28x = 96,159,161.86
  5. Step 5: Solve for x
    x = 96,159,161.86/9,478.28
  6. Step 6: Final answer
    x = 10,145.22

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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.