Home / 13,055.47-19,558.53-10,119.40

Finding the Fourth Proportional to 13,055.47, 19,558.53 and 10,119.40

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Solution

The fourth proportional to 13,055.47, 19,558.53 and 10,119.40 is: 15,159.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,055.47 : 19,558.53 = 10,119.40 : x
  2. Step 2: Convert to fraction form
    13,055.47/19,558.53 = 10,119.40/x
  3. Step 3: Cross multiply
    13,055.47x = 19,558.53 × 10,119.40
  4. Step 4: Simplify right side
    13,055.47x = 197,920,490.69
  5. Step 5: Solve for x
    x = 197,920,490.69/13,055.47
  6. Step 6: Final answer
    x = 15,159.97

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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.