Home / 10,986.48-15,186.26-10,114.58

Finding the Fourth Proportional to 10,986.48, 15,186.26 and 10,114.58

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Solution

The fourth proportional to 10,986.48, 15,186.26 and 10,114.58 is: 13,981.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,986.48 : 15,186.26 = 10,114.58 : x
  2. Step 2: Convert to fraction form
    10,986.48/15,186.26 = 10,114.58/x
  3. Step 3: Cross multiply
    10,986.48x = 15,186.26 × 10,114.58
  4. Step 4: Simplify right side
    10,986.48x = 153,602,641.67
  5. Step 5: Solve for x
    x = 153,602,641.67/10,986.48
  6. Step 6: Final answer
    x = 13,981.06

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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.