Home / 10,905.52-15,048.24-6,188.80

Finding the Fourth Proportional to 10,905.52, 15,048.24 and 6,188.80

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Solution

The fourth proportional to 10,905.52, 15,048.24 and 6,188.80 is: 8,539.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,905.52 : 15,048.24 = 6,188.80 : x
  2. Step 2: Convert to fraction form
    10,905.52/15,048.24 = 6,188.80/x
  3. Step 3: Cross multiply
    10,905.52x = 15,048.24 × 6,188.80
  4. Step 4: Simplify right side
    10,905.52x = 93,130,547.71
  5. Step 5: Solve for x
    x = 93,130,547.71/10,905.52
  6. Step 6: Final answer
    x = 8,539.76

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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.