Home / 15,603.57-21,533.31-8,530.52

Finding the Fourth Proportional to 15,603.57, 21,533.31 and 8,530.52

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Solution

The fourth proportional to 15,603.57, 21,533.31 and 8,530.52 is: 11,772.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.57 : 21,533.31 = 8,530.52 : x
  2. Step 2: Convert to fraction form
    15,603.57/21,533.31 = 8,530.52/x
  3. Step 3: Cross multiply
    15,603.57x = 21,533.31 × 8,530.52
  4. Step 4: Simplify right side
    15,603.57x = 183,690,223.95
  5. Step 5: Solve for x
    x = 183,690,223.95/15,603.57
  6. Step 6: Final answer
    x = 11,772.32

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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.