Home / 15,171.72-22,727.53-7,155.51

Finding the Fourth Proportional to 15,171.72, 22,727.53 and 7,155.51

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Solution

The fourth proportional to 15,171.72, 22,727.53 and 7,155.51 is: 10,719.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,171.72 : 22,727.53 = 7,155.51 : x
  2. Step 2: Convert to fraction form
    15,171.72/22,727.53 = 7,155.51/x
  3. Step 3: Cross multiply
    15,171.72x = 22,727.53 × 7,155.51
  4. Step 4: Simplify right side
    15,171.72x = 162,627,068.19
  5. Step 5: Solve for x
    x = 162,627,068.19/15,171.72
  6. Step 6: Final answer
    x = 10,719.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.