Home / 10,138.34-15,210.26-9,162.39

Finding the Fourth Proportional to 10,138.34, 15,210.26 and 9,162.39

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Solution

The fourth proportional to 10,138.34, 15,210.26 and 9,162.39 is: 13,746.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,138.34 : 15,210.26 = 9,162.39 : x
  2. Step 2: Convert to fraction form
    10,138.34/15,210.26 = 9,162.39/x
  3. Step 3: Cross multiply
    10,138.34x = 15,210.26 × 9,162.39
  4. Step 4: Simplify right side
    10,138.34x = 139,362,311.16
  5. Step 5: Solve for x
    x = 139,362,311.16/10,138.34
  6. Step 6: Final answer
    x = 13,746.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.