Home / 10,316.72-15,530.84-9,398.18

Finding the Fourth Proportional to 10,316.72, 15,530.84 and 9,398.18

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Solution

The fourth proportional to 10,316.72, 15,530.84 and 9,398.18 is: 14,148.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,316.72 : 15,530.84 = 9,398.18 : x
  2. Step 2: Convert to fraction form
    10,316.72/15,530.84 = 9,398.18/x
  3. Step 3: Cross multiply
    10,316.72x = 15,530.84 × 9,398.18
  4. Step 4: Simplify right side
    10,316.72x = 145,961,629.87
  5. Step 5: Solve for x
    x = 145,961,629.87/10,316.72
  6. Step 6: Final answer
    x = 14,148.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.