Home / 15,137.18-20,889.15-8,848.34

Finding the Fourth Proportional to 15,137.18, 20,889.15 and 8,848.34

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Solution

The fourth proportional to 15,137.18, 20,889.15 and 8,848.34 is: 12,210.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,137.18 : 20,889.15 = 8,848.34 : x
  2. Step 2: Convert to fraction form
    15,137.18/20,889.15 = 8,848.34/x
  3. Step 3: Cross multiply
    15,137.18x = 20,889.15 × 8,848.34
  4. Step 4: Simplify right side
    15,137.18x = 184,834,301.51
  5. Step 5: Solve for x
    x = 184,834,301.51/15,137.18
  6. Step 6: Final answer
    x = 12,210.62

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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.