Home / 10,243.16-15,374.31-5,316.26

Finding the Fourth Proportional to 10,243.16, 15,374.31 and 5,316.26

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Solution

The fourth proportional to 10,243.16, 15,374.31 and 5,316.26 is: 7,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,243.16 : 15,374.31 = 5,316.26 : x
  2. Step 2: Convert to fraction form
    10,243.16/15,374.31 = 5,316.26/x
  3. Step 3: Cross multiply
    10,243.16x = 15,374.31 × 5,316.26
  4. Step 4: Simplify right side
    10,243.16x = 81,733,775.71
  5. Step 5: Solve for x
    x = 81,733,775.71/10,243.16
  6. Step 6: Final answer
    x = 7,979.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.