Home / 15,603.04-21,531.77-8,890.84

Finding the Fourth Proportional to 15,603.04, 21,531.77 and 8,890.84

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Solution

The fourth proportional to 15,603.04, 21,531.77 and 8,890.84 is: 12,269.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.04 : 21,531.77 = 8,890.84 : x
  2. Step 2: Convert to fraction form
    15,603.04/21,531.77 = 8,890.84/x
  3. Step 3: Cross multiply
    15,603.04x = 21,531.77 × 8,890.84
  4. Step 4: Simplify right side
    15,603.04x = 191,435,400.00
  5. Step 5: Solve for x
    x = 191,435,400.00/15,603.04
  6. Step 6: Final answer
    x = 12,269.11

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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.