Home / 15,848.19-21,869.63-8,774.16

Finding the Fourth Proportional to 15,848.19, 21,869.63 and 8,774.16

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Solution

The fourth proportional to 15,848.19, 21,869.63 and 8,774.16 is: 12,107.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,848.19 : 21,869.63 = 8,774.16 : x
  2. Step 2: Convert to fraction form
    15,848.19/21,869.63 = 8,774.16/x
  3. Step 3: Cross multiply
    15,848.19x = 21,869.63 × 8,774.16
  4. Step 4: Simplify right side
    15,848.19x = 191,887,539.78
  5. Step 5: Solve for x
    x = 191,887,539.78/15,848.19
  6. Step 6: Final answer
    x = 12,107.85

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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.