Home / 9,427.20-14,140.80-5,042.40

Finding the Fourth Proportional to 9,427.20, 14,140.80 and 5,042.40

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Solution

The fourth proportional to 9,427.20, 14,140.80 and 5,042.40 is: 7,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,427.20 : 14,140.80 = 5,042.40 : x
  2. Step 2: Convert to fraction form
    9,427.20/14,140.80 = 5,042.40/x
  3. Step 3: Cross multiply
    9,427.20x = 14,140.80 × 5,042.40
  4. Step 4: Simplify right side
    9,427.20x = 71,303,569.92
  5. Step 5: Solve for x
    x = 71,303,569.92/9,427.20
  6. Step 6: Final answer
    x = 7,563.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.