Home / 7,106.40-10,659.60-5,810.40

Finding the Fourth Proportional to 7,106.40, 10,659.60 and 5,810.40

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Solution

The fourth proportional to 7,106.40, 10,659.60 and 5,810.40 is: 8,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,106.40 : 10,659.60 = 5,810.40 : x
  2. Step 2: Convert to fraction form
    7,106.40/10,659.60 = 5,810.40/x
  3. Step 3: Cross multiply
    7,106.40x = 10,659.60 × 5,810.40
  4. Step 4: Simplify right side
    7,106.40x = 61,936,539.84
  5. Step 5: Solve for x
    x = 61,936,539.84/7,106.40
  6. Step 6: Final answer
    x = 8,715.60

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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.