Home / 13,239.14-18,264.93-7,572.74

Finding the Fourth Proportional to 13,239.14, 18,264.93 and 7,572.74

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Solution

The fourth proportional to 13,239.14, 18,264.93 and 7,572.74 is: 10,447.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,239.14 : 18,264.93 = 7,572.74 : x
  2. Step 2: Convert to fraction form
    13,239.14/18,264.93 = 7,572.74/x
  3. Step 3: Cross multiply
    13,239.14x = 18,264.93 × 7,572.74
  4. Step 4: Simplify right side
    13,239.14x = 138,315,566.01
  5. Step 5: Solve for x
    x = 138,315,566.01/13,239.14
  6. Step 6: Final answer
    x = 10,447.47

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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.