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Finding the Fourth Proportional to 15,603.52, 21,527.50 and 8,886.70

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Solution

The fourth proportional to 15,603.52, 21,527.50 and 8,886.70 is: 12,260.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,603.52 : 21,527.50 = 8,886.70 : x
  2. Step 2: Convert to fraction form
    15,603.52/21,527.50 = 8,886.70/x
  3. Step 3: Cross multiply
    15,603.52x = 21,527.50 × 8,886.70
  4. Step 4: Simplify right side
    15,603.52x = 191,308,434.25
  5. Step 5: Solve for x
    x = 191,308,434.25/15,603.52
  6. Step 6: Final answer
    x = 12,260.59

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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.