Home / 7,439.32-10,266.40-4,455.28

Finding the Fourth Proportional to 7,439.32, 10,266.40 and 4,455.28

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Solution

The fourth proportional to 7,439.32, 10,266.40 and 4,455.28 is: 6,148.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,439.32 : 10,266.40 = 4,455.28 : x
  2. Step 2: Convert to fraction form
    7,439.32/10,266.40 = 4,455.28/x
  3. Step 3: Cross multiply
    7,439.32x = 10,266.40 × 4,455.28
  4. Step 4: Simplify right side
    7,439.32x = 45,739,686.59
  5. Step 5: Solve for x
    x = 45,739,686.59/7,439.32
  6. Step 6: Final answer
    x = 6,148.37

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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.