Home / 9,612.16-13,263.36-5,419.84

Finding the Fourth Proportional to 9,612.16, 13,263.36 and 5,419.84

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Solution

The fourth proportional to 9,612.16, 13,263.36 and 5,419.84 is: 7,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,612.16 : 13,263.36 = 5,419.84 : x
  2. Step 2: Convert to fraction form
    9,612.16/13,263.36 = 5,419.84/x
  3. Step 3: Cross multiply
    9,612.16x = 13,263.36 × 5,419.84
  4. Step 4: Simplify right side
    9,612.16x = 71,885,289.06
  5. Step 5: Solve for x
    x = 71,885,289.06/9,612.16
  6. Step 6: Final answer
    x = 7,478.58

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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.