Home / 9,862.61-13,610.40-5,386.39

Finding the Fourth Proportional to 9,862.61, 13,610.40 and 5,386.39

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Solution

The fourth proportional to 9,862.61, 13,610.40 and 5,386.39 is: 7,433.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,862.61 : 13,610.40 = 5,386.39 : x
  2. Step 2: Convert to fraction form
    9,862.61/13,610.40 = 5,386.39/x
  3. Step 3: Cross multiply
    9,862.61x = 13,610.40 × 5,386.39
  4. Step 4: Simplify right side
    9,862.61x = 73,310,888.43
  5. Step 5: Solve for x
    x = 73,310,888.43/9,862.61
  6. Step 6: Final answer
    x = 7,433.22

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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.