Home / 13,749.04-18,973.12-7,461.28

Finding the Fourth Proportional to 13,749.04, 18,973.12 and 7,461.28

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Solution

The fourth proportional to 13,749.04, 18,973.12 and 7,461.28 is: 10,296.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,749.04 : 18,973.12 = 7,461.28 : x
  2. Step 2: Convert to fraction form
    13,749.04/18,973.12 = 7,461.28/x
  3. Step 3: Cross multiply
    13,749.04x = 18,973.12 × 7,461.28
  4. Step 4: Simplify right side
    13,749.04x = 141,563,760.79
  5. Step 5: Solve for x
    x = 141,563,760.79/13,749.04
  6. Step 6: Final answer
    x = 10,296.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.