Home / 13,015.56-19,477.98-10,648.20

Finding the Fourth Proportional to 13,015.56, 19,477.98 and 10,648.20

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Solution

The fourth proportional to 13,015.56, 19,477.98 and 10,648.20 is: 15,935.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.56 : 19,477.98 = 10,648.20 : x
  2. Step 2: Convert to fraction form
    13,015.56/19,477.98 = 10,648.20/x
  3. Step 3: Cross multiply
    13,015.56x = 19,477.98 × 10,648.20
  4. Step 4: Simplify right side
    13,015.56x = 207,405,426.64
  5. Step 5: Solve for x
    x = 207,405,426.64/13,015.56
  6. Step 6: Final answer
    x = 15,935.19

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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.