Home / 15,603.80-21,533.27-8,530.25

Finding the Fourth Proportional to 15,603.80, 21,533.27 and 8,530.25

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Solution

The fourth proportional to 15,603.80, 21,533.27 and 8,530.25 is: 11,771.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.80 : 21,533.27 = 8,530.25 : x
  2. Step 2: Convert to fraction form
    15,603.80/21,533.27 = 8,530.25/x
  3. Step 3: Cross multiply
    15,603.80x = 21,533.27 × 8,530.25
  4. Step 4: Simplify right side
    15,603.80x = 183,684,026.10
  5. Step 5: Solve for x
    x = 183,684,026.10/15,603.80
  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.