Home / 13,256.19-18,293.13-7,287.30

Finding the Fourth Proportional to 13,256.19, 18,293.13 and 7,287.30

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Solution

The fourth proportional to 13,256.19, 18,293.13 and 7,287.30 is: 10,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.19 : 18,293.13 = 7,287.30 : x
  2. Step 2: Convert to fraction form
    13,256.19/18,293.13 = 7,287.30/x
  3. Step 3: Cross multiply
    13,256.19x = 18,293.13 × 7,287.30
  4. Step 4: Simplify right side
    13,256.19x = 133,307,526.25
  5. Step 5: Solve for x
    x = 133,307,526.25/13,256.19
  6. Step 6: Final answer
    x = 10,056.25

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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.