Home / 13,097.07-18,073.50-7,128.65

Finding the Fourth Proportional to 13,097.07, 18,073.50 and 7,128.65

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Solution

The fourth proportional to 13,097.07, 18,073.50 and 7,128.65 is: 9,837.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,097.07 : 18,073.50 = 7,128.65 : x
  2. Step 2: Convert to fraction form
    13,097.07/18,073.50 = 7,128.65/x
  3. Step 3: Cross multiply
    13,097.07x = 18,073.50 × 7,128.65
  4. Step 4: Simplify right side
    13,097.07x = 128,839,565.41
  5. Step 5: Solve for x
    x = 128,839,565.41/13,097.07
  6. Step 6: Final answer
    x = 9,837.28

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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.