Home / 15,780.14-23,647.65-11,587.25

Finding the Fourth Proportional to 15,780.14, 23,647.65 and 11,587.25

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Solution

The fourth proportional to 15,780.14, 23,647.65 and 11,587.25 is: 17,364.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,780.14 : 23,647.65 = 11,587.25 : x
  2. Step 2: Convert to fraction form
    15,780.14/23,647.65 = 11,587.25/x
  3. Step 3: Cross multiply
    15,780.14x = 23,647.65 × 11,587.25
  4. Step 4: Simplify right side
    15,780.14x = 274,011,232.46
  5. Step 5: Solve for x
    x = 274,011,232.46/15,780.14
  6. Step 6: Final answer
    x = 17,364.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.