Home / 10,977.24-15,118.20-9,484.68

Finding the Fourth Proportional to 10,977.24, 15,118.20 and 9,484.68

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Solution

The fourth proportional to 10,977.24, 15,118.20 and 9,484.68 is: 13,062.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,977.24 : 15,118.20 = 9,484.68 : x
  2. Step 2: Convert to fraction form
    10,977.24/15,118.20 = 9,484.68/x
  3. Step 3: Cross multiply
    10,977.24x = 15,118.20 × 9,484.68
  4. Step 4: Simplify right side
    10,977.24x = 143,391,289.18
  5. Step 5: Solve for x
    x = 143,391,289.18/10,977.24
  6. Step 6: Final answer
    x = 13,062.60

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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.