Home / 9,663.40-13,336.76-5,416.08

Finding the Fourth Proportional to 9,663.40, 13,336.76 and 5,416.08

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Solution

The fourth proportional to 9,663.40, 13,336.76 and 5,416.08 is: 7,474.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,663.40 : 13,336.76 = 5,416.08 : x
  2. Step 2: Convert to fraction form
    9,663.40/13,336.76 = 5,416.08/x
  3. Step 3: Cross multiply
    9,663.40x = 13,336.76 × 5,416.08
  4. Step 4: Simplify right side
    9,663.40x = 72,232,959.10
  5. Step 5: Solve for x
    x = 72,232,959.10/9,663.40
  6. Step 6: Final answer
    x = 7,474.90

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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.