Home / 8,490.07-11,720.22-5,088.70

Finding the Fourth Proportional to 8,490.07, 11,720.22 and 5,088.70

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Solution

The fourth proportional to 8,490.07, 11,720.22 and 5,088.70 is: 7,024.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.07 : 11,720.22 = 5,088.70 : x
  2. Step 2: Convert to fraction form
    8,490.07/11,720.22 = 5,088.70/x
  3. Step 3: Cross multiply
    8,490.07x = 11,720.22 × 5,088.70
  4. Step 4: Simplify right side
    8,490.07x = 59,640,599.47
  5. Step 5: Solve for x
    x = 59,640,599.47/8,490.07
  6. Step 6: Final answer
    x = 7,024.75

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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.