Home / 10,130.86-13,980.56-5,654.46

Finding the Fourth Proportional to 10,130.86, 13,980.56 and 5,654.46

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Solution

The fourth proportional to 10,130.86, 13,980.56 and 5,654.46 is: 7,803.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.86 : 13,980.56 = 5,654.46 : x
  2. Step 2: Convert to fraction form
    10,130.86/13,980.56 = 5,654.46/x
  3. Step 3: Cross multiply
    10,130.86x = 13,980.56 × 5,654.46
  4. Step 4: Simplify right side
    10,130.86x = 79,052,517.30
  5. Step 5: Solve for x
    x = 79,052,517.30/10,130.86
  6. Step 6: Final answer
    x = 7,803.14

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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.