Home / 11,298.40-15,591.52-6,518.35

Finding the Fourth Proportional to 11,298.40, 15,591.52 and 6,518.35

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Solution

The fourth proportional to 11,298.40, 15,591.52 and 6,518.35 is: 8,995.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,298.40 : 15,591.52 = 6,518.35 : x
  2. Step 2: Convert to fraction form
    11,298.40/15,591.52 = 6,518.35/x
  3. Step 3: Cross multiply
    11,298.40x = 15,591.52 × 6,518.35
  4. Step 4: Simplify right side
    11,298.40x = 101,630,984.39
  5. Step 5: Solve for x
    x = 101,630,984.39/11,298.40
  6. Step 6: Final answer
    x = 8,995.17

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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.