Home / 9,818.64-13,549.73-5,342.40

Finding the Fourth Proportional to 9,818.64, 13,549.73 and 5,342.40

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Solution

The fourth proportional to 9,818.64, 13,549.73 and 5,342.40 is: 7,372.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,818.64 : 13,549.73 = 5,342.40 : x
  2. Step 2: Convert to fraction form
    9,818.64/13,549.73 = 5,342.40/x
  3. Step 3: Cross multiply
    9,818.64x = 13,549.73 × 5,342.40
  4. Step 4: Simplify right side
    9,818.64x = 72,388,050.84
  5. Step 5: Solve for x
    x = 72,388,050.84/9,818.64
  6. Step 6: Final answer
    x = 7,372.51

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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.