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Finding the Fourth Proportional to 8,478.04, 11,703.54 and 5,457.52

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Solution

The fourth proportional to 8,478.04, 11,703.54 and 5,457.52 is: 7,533.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478.04 : 11,703.54 = 5,457.52 : x
  2. Step 2: Convert to fraction form
    8,478.04/11,703.54 = 5,457.52/x
  3. Step 3: Cross multiply
    8,478.04x = 11,703.54 × 5,457.52
  4. Step 4: Simplify right side
    8,478.04x = 63,872,303.62
  5. Step 5: Solve for x
    x = 63,872,303.62/8,478.04
  6. Step 6: Final answer
    x = 7,533.85

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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.