Home / 14,790.18-20,405.54-9,756.90

Finding the Fourth Proportional to 14,790.18, 20,405.54 and 9,756.90

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Solution

The fourth proportional to 14,790.18, 20,405.54 and 9,756.90 is: 13,461.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,790.18 : 20,405.54 = 9,756.90 : x
  2. Step 2: Convert to fraction form
    14,790.18/20,405.54 = 9,756.90/x
  3. Step 3: Cross multiply
    14,790.18x = 20,405.54 × 9,756.90
  4. Step 4: Simplify right side
    14,790.18x = 199,094,813.23
  5. Step 5: Solve for x
    x = 199,094,813.23/14,790.18
  6. Step 6: Final answer
    x = 13,461.28

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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.