Home / 10,025.40-15,038.10-9,150.60

Finding the Fourth Proportional to 10,025.40, 15,038.10 and 9,150.60

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Solution

The fourth proportional to 10,025.40, 15,038.10 and 9,150.60 is: 13,725.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,025.40 : 15,038.10 = 9,150.60 : x
  2. Step 2: Convert to fraction form
    10,025.40/15,038.10 = 9,150.60/x
  3. Step 3: Cross multiply
    10,025.40x = 15,038.10 × 9,150.60
  4. Step 4: Simplify right side
    10,025.40x = 137,607,637.86
  5. Step 5: Solve for x
    x = 137,607,637.86/10,025.40
  6. Step 6: Final answer
    x = 13,725.90

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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.