Home / 10,970.40-16,455.60-4,047.60

Finding the Fourth Proportional to 10,970.40, 16,455.60 and 4,047.60

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Solution

The fourth proportional to 10,970.40, 16,455.60 and 4,047.60 is: 6,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970.40 : 16,455.60 = 4,047.60 : x
  2. Step 2: Convert to fraction form
    10,970.40/16,455.60 = 4,047.60/x
  3. Step 3: Cross multiply
    10,970.40x = 16,455.60 × 4,047.60
  4. Step 4: Simplify right side
    10,970.40x = 66,605,686.56
  5. Step 5: Solve for x
    x = 66,605,686.56/10,970.40
  6. Step 6: Final answer
    x = 6,071.40

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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.