Home / 9,886.35-13,642.64-5,637.52

Finding the Fourth Proportional to 9,886.35, 13,642.64 and 5,637.52

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Solution

The fourth proportional to 9,886.35, 13,642.64 and 5,637.52 is: 7,779.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886.35 : 13,642.64 = 5,637.52 : x
  2. Step 2: Convert to fraction form
    9,886.35/13,642.64 = 5,637.52/x
  3. Step 3: Cross multiply
    9,886.35x = 13,642.64 × 5,637.52
  4. Step 4: Simplify right side
    9,886.35x = 76,910,559.45
  5. Step 5: Solve for x
    x = 76,910,559.45/9,886.35
  6. Step 6: Final answer
    x = 7,779.47

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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.