Home / 15,765.76-21,752.40-9,051.04

Finding the Fourth Proportional to 15,765.76, 21,752.40 and 9,051.04

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Solution

The fourth proportional to 15,765.76, 21,752.40 and 9,051.04 is: 12,487.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.76 : 21,752.40 = 9,051.04 : x
  2. Step 2: Convert to fraction form
    15,765.76/21,752.40 = 9,051.04/x
  3. Step 3: Cross multiply
    15,765.76x = 21,752.40 × 9,051.04
  4. Step 4: Simplify right side
    15,765.76x = 196,881,842.50
  5. Step 5: Solve for x
    x = 196,881,842.50/15,765.76
  6. Step 6: Final answer
    x = 12,487.94

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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.