Home / 8,955.20-12,346.08-7,555.52

Finding the Fourth Proportional to 8,955.20, 12,346.08 and 7,555.52

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Solution

The fourth proportional to 8,955.20, 12,346.08 and 7,555.52 is: 10,416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.20 : 12,346.08 = 7,555.52 : x
  2. Step 2: Convert to fraction form
    8,955.20/12,346.08 = 7,555.52/x
  3. Step 3: Cross multiply
    8,955.20x = 12,346.08 × 7,555.52
  4. Step 4: Simplify right side
    8,955.20x = 93,281,054.36
  5. Step 5: Solve for x
    x = 93,281,054.36/8,955.20
  6. Step 6: Final answer
    x = 10,416.41

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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.