Home / 15,637.63-21,579.93-8,564.05

Finding the Fourth Proportional to 15,637.63, 21,579.93 and 8,564.05

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Solution

The fourth proportional to 15,637.63, 21,579.93 and 8,564.05 is: 11,818.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,637.63 : 21,579.93 = 8,564.05 : x
  2. Step 2: Convert to fraction form
    15,637.63/21,579.93 = 8,564.05/x
  3. Step 3: Cross multiply
    15,637.63x = 21,579.93 × 8,564.05
  4. Step 4: Simplify right side
    15,637.63x = 184,811,599.52
  5. Step 5: Solve for x
    x = 184,811,599.52/15,637.63
  6. Step 6: Final answer
    x = 11,818.39

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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.