Home / 7,242.40-10,863.60-5,298.40

Finding the Fourth Proportional to 7,242.40, 10,863.60 and 5,298.40

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Solution

The fourth proportional to 7,242.40, 10,863.60 and 5,298.40 is: 7,947.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,242.40 : 10,863.60 = 5,298.40 : x
  2. Step 2: Convert to fraction form
    7,242.40/10,863.60 = 5,298.40/x
  3. Step 3: Cross multiply
    7,242.40x = 10,863.60 × 5,298.40
  4. Step 4: Simplify right side
    7,242.40x = 57,559,698.24
  5. Step 5: Solve for x
    x = 57,559,698.24/7,242.40
  6. Step 6: Final answer
    x = 7,947.60

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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.