Home / 10,330.80-15,485.40-4,088.40

Finding the Fourth Proportional to 10,330.80, 15,485.40 and 4,088.40

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Solution

The fourth proportional to 10,330.80, 15,485.40 and 4,088.40 is: 6,128.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,330.80 : 15,485.40 = 4,088.40 : x
  2. Step 2: Convert to fraction form
    10,330.80/15,485.40 = 4,088.40/x
  3. Step 3: Cross multiply
    10,330.80x = 15,485.40 × 4,088.40
  4. Step 4: Simplify right side
    10,330.80x = 63,310,509.36
  5. Step 5: Solve for x
    x = 63,310,509.36/10,330.80
  6. Step 6: Final answer
    x = 6,128.33

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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.