Home / 13,397.48-18,488.35-7,429.26

Finding the Fourth Proportional to 13,397.48, 18,488.35 and 7,429.26

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Solution

The fourth proportional to 13,397.48, 18,488.35 and 7,429.26 is: 10,252.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,397.48 : 18,488.35 = 7,429.26 : x
  2. Step 2: Convert to fraction form
    13,397.48/18,488.35 = 7,429.26/x
  3. Step 3: Cross multiply
    13,397.48x = 18,488.35 × 7,429.26
  4. Step 4: Simplify right side
    13,397.48x = 137,354,759.12
  5. Step 5: Solve for x
    x = 137,354,759.12/13,397.48
  6. Step 6: Final answer
    x = 10,252.28

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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.