Home / 10,980.48-15,159.60-6,794.40

Finding the Fourth Proportional to 10,980.48, 15,159.60 and 6,794.40

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Solution

The fourth proportional to 10,980.48, 15,159.60 and 6,794.40 is: 9,380.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,980.48 : 15,159.60 = 6,794.40 : x
  2. Step 2: Convert to fraction form
    10,980.48/15,159.60 = 6,794.40/x
  3. Step 3: Cross multiply
    10,980.48x = 15,159.60 × 6,794.40
  4. Step 4: Simplify right side
    10,980.48x = 103,000,386.24
  5. Step 5: Solve for x
    x = 103,000,386.24/10,980.48
  6. Step 6: Final answer
    x = 9,380.32

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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.