Home / 15,835.61-21,853.58-8,762.51

Finding the Fourth Proportional to 15,835.61, 21,853.58 and 8,762.51

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Solution

The fourth proportional to 15,835.61, 21,853.58 and 8,762.51 is: 12,092.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,835.61 : 21,853.58 = 8,762.51 : x
  2. Step 2: Convert to fraction form
    15,835.61/21,853.58 = 8,762.51/x
  3. Step 3: Cross multiply
    15,835.61x = 21,853.58 × 8,762.51
  4. Step 4: Simplify right side
    15,835.61x = 191,492,060.21
  5. Step 5: Solve for x
    x = 191,492,060.21/15,835.61
  6. Step 6: Final answer
    x = 12,092.50

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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.