Home / 9,980.19-13,772.75-5,504.10

Finding the Fourth Proportional to 9,980.19, 13,772.75 and 5,504.10

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Solution

The fourth proportional to 9,980.19, 13,772.75 and 5,504.10 is: 7,595.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,980.19 : 13,772.75 = 5,504.10 : x
  2. Step 2: Convert to fraction form
    9,980.19/13,772.75 = 5,504.10/x
  3. Step 3: Cross multiply
    9,980.19x = 13,772.75 × 5,504.10
  4. Step 4: Simplify right side
    9,980.19x = 75,806,565.75
  5. Step 5: Solve for x
    x = 75,806,565.75/9,980.19
  6. Step 6: Final answer
    x = 7,595.70

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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.