Home / 13,313.19-19,963.64-4,987.26

Finding the Fourth Proportional to 13,313.19, 19,963.64 and 4,987.26

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Solution

The fourth proportional to 13,313.19, 19,963.64 and 4,987.26 is: 7,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,313.19 : 19,963.64 = 4,987.26 : x
  2. Step 2: Convert to fraction form
    13,313.19/19,963.64 = 4,987.26/x
  3. Step 3: Cross multiply
    13,313.19x = 19,963.64 × 4,987.26
  4. Step 4: Simplify right side
    13,313.19x = 99,563,838.29
  5. Step 5: Solve for x
    x = 99,563,838.29/13,313.19
  6. Step 6: Final answer
    x = 7,478.59

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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.