Home / 9,886.66-13,643.37-5,637.43

Finding the Fourth Proportional to 9,886.66, 13,643.37 and 5,637.43

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Solution

The fourth proportional to 9,886.66, 13,643.37 and 5,637.43 is: 7,779.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,886.66 : 13,643.37 = 5,637.43 : x
  2. Step 2: Convert to fraction form
    9,886.66/13,643.37 = 5,637.43/x
  3. Step 3: Cross multiply
    9,886.66x = 13,643.37 × 5,637.43
  4. Step 4: Simplify right side
    9,886.66x = 76,913,543.34
  5. Step 5: Solve for x
    x = 76,913,543.34/9,886.66
  6. Step 6: Final answer
    x = 7,779.53

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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.