Home / 15,628.60-21,567.48-8,555.03

Finding the Fourth Proportional to 15,628.60, 21,567.48 and 8,555.03

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Solution

The fourth proportional to 15,628.60, 21,567.48 and 8,555.03 is: 11,805.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.60 : 21,567.48 = 8,555.03 : x
  2. Step 2: Convert to fraction form
    15,628.60/21,567.48 = 8,555.03/x
  3. Step 3: Cross multiply
    15,628.60x = 21,567.48 × 8,555.03
  4. Step 4: Simplify right side
    15,628.60x = 184,510,492.34
  5. Step 5: Solve for x
    x = 184,510,492.34/15,628.60
  6. Step 6: Final answer
    x = 11,805.95

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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.