Home / 13,437.09-18,543.48-7,469.01

Finding the Fourth Proportional to 13,437.09, 18,543.48 and 7,469.01

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Solution

The fourth proportional to 13,437.09, 18,543.48 and 7,469.01 is: 10,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,437.09 : 18,543.48 = 7,469.01 : x
  2. Step 2: Convert to fraction form
    13,437.09/18,543.48 = 7,469.01/x
  3. Step 3: Cross multiply
    13,437.09x = 18,543.48 × 7,469.01
  4. Step 4: Simplify right side
    13,437.09x = 138,501,437.55
  5. Step 5: Solve for x
    x = 138,501,437.55/13,437.09
  6. Step 6: Final answer
    x = 10,307.40

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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.