Home / 12,521.59-17,279.93-6,856.45

Finding the Fourth Proportional to 12,521.59, 17,279.93 and 6,856.45

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Solution

The fourth proportional to 12,521.59, 17,279.93 and 6,856.45 is: 9,461.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,521.59 : 17,279.93 = 6,856.45 : x
  2. Step 2: Convert to fraction form
    12,521.59/17,279.93 = 6,856.45/x
  3. Step 3: Cross multiply
    12,521.59x = 17,279.93 × 6,856.45
  4. Step 4: Simplify right side
    12,521.59x = 118,478,949.99
  5. Step 5: Solve for x
    x = 118,478,949.99/12,521.59
  6. Step 6: Final answer
    x = 9,461.98

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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.