Home / 7,909.04-10,904.32-6,487.60

Finding the Fourth Proportional to 7,909.04, 10,904.32 and 6,487.60

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Solution

The fourth proportional to 7,909.04, 10,904.32 and 6,487.60 is: 8,944.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,909.04 : 10,904.32 = 6,487.60 : x
  2. Step 2: Convert to fraction form
    7,909.04/10,904.32 = 6,487.60/x
  3. Step 3: Cross multiply
    7,909.04x = 10,904.32 × 6,487.60
  4. Step 4: Simplify right side
    7,909.04x = 70,742,866.43
  5. Step 5: Solve for x
    x = 70,742,866.43/7,909.04
  6. Step 6: Final answer
    x = 8,944.56

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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.