Home / 9,721.18-13,416.51-5,528.62

Finding the Fourth Proportional to 9,721.18, 13,416.51 and 5,528.62

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Solution

The fourth proportional to 9,721.18, 13,416.51 and 5,528.62 is: 7,630.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.18 : 13,416.51 = 5,528.62 : x
  2. Step 2: Convert to fraction form
    9,721.18/13,416.51 = 5,528.62/x
  3. Step 3: Cross multiply
    9,721.18x = 13,416.51 × 5,528.62
  4. Step 4: Simplify right side
    9,721.18x = 74,174,785.52
  5. Step 5: Solve for x
    x = 74,174,785.52/9,721.18
  6. Step 6: Final answer
    x = 7,630.22

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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.