Home / 15,603.83-21,533.29-8,530.25

Finding the Fourth Proportional to 15,603.83, 21,533.29 and 8,530.25

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Solution

The fourth proportional to 15,603.83, 21,533.29 and 8,530.25 is: 11,771.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.83 : 21,533.29 = 8,530.25 : x
  2. Step 2: Convert to fraction form
    15,603.83/21,533.29 = 8,530.25/x
  3. Step 3: Cross multiply
    15,603.83x = 21,533.29 × 8,530.25
  4. Step 4: Simplify right side
    15,603.83x = 183,684,379.53
  5. Step 5: Solve for x
    x = 183,684,379.53/15,603.83
  6. Step 6: Final answer
    x = 11,771.75

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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.