Home / 13,437.98-18,543.56-7,469.45

Finding the Fourth Proportional to 13,437.98, 18,543.56 and 7,469.45

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Solution

The fourth proportional to 13,437.98, 18,543.56 and 7,469.45 is: 10,307.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.98 : 18,543.56 = 7,469.45 : x
  2. Step 2: Convert to fraction form
    13,437.98/18,543.56 = 7,469.45/x
  3. Step 3: Cross multiply
    13,437.98x = 18,543.56 × 7,469.45
  4. Step 4: Simplify right side
    13,437.98x = 138,510,194.24
  5. Step 5: Solve for x
    x = 138,510,194.24/13,437.98
  6. Step 6: Final answer
    x = 10,307.37

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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.