Home / 13,354.34-18,427.91-7,386.03

Finding the Fourth Proportional to 13,354.34, 18,427.91 and 7,386.03

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Solution

The fourth proportional to 13,354.34, 18,427.91 and 7,386.03 is: 10,192.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354.34 : 18,427.91 = 7,386.03 : x
  2. Step 2: Convert to fraction form
    13,354.34/18,427.91 = 7,386.03/x
  3. Step 3: Cross multiply
    13,354.34x = 18,427.91 × 7,386.03
  4. Step 4: Simplify right side
    13,354.34x = 136,109,059.17
  5. Step 5: Solve for x
    x = 136,109,059.17/13,354.34
  6. Step 6: Final answer
    x = 10,192.13

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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.