Home / 15,637.50-21,579.75-8,564.18

Finding the Fourth Proportional to 15,637.50, 21,579.75 and 8,564.18

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Solution

The fourth proportional to 15,637.50, 21,579.75 and 8,564.18 is: 11,818.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.50 : 21,579.75 = 8,564.18 : x
  2. Step 2: Convert to fraction form
    15,637.50/21,579.75 = 8,564.18/x
  3. Step 3: Cross multiply
    15,637.50x = 21,579.75 × 8,564.18
  4. Step 4: Simplify right side
    15,637.50x = 184,812,755.46
  5. Step 5: Solve for x
    x = 184,812,755.46/15,637.50
  6. Step 6: Final answer
    x = 11,818.56

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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.