Home / 15,628.78-23,415.81-13,013.07

Finding the Fourth Proportional to 15,628.78, 23,415.81 and 13,013.07

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Solution

The fourth proportional to 15,628.78, 23,415.81 and 13,013.07 is: 19,496.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.78 : 23,415.81 = 13,013.07 : x
  2. Step 2: Convert to fraction form
    15,628.78/23,415.81 = 13,013.07/x
  3. Step 3: Cross multiply
    15,628.78x = 23,415.81 × 13,013.07
  4. Step 4: Simplify right side
    15,628.78x = 304,711,574.64
  5. Step 5: Solve for x
    x = 304,711,574.64/15,628.78
  6. Step 6: Final answer
    x = 19,496.82

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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.