Home / 15,370.51-21,211.70-8,656.39

Finding the Fourth Proportional to 15,370.51, 21,211.70 and 8,656.39

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Solution

The fourth proportional to 15,370.51, 21,211.70 and 8,656.39 is: 11,946.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.51 : 21,211.70 = 8,656.39 : x
  2. Step 2: Convert to fraction form
    15,370.51/21,211.70 = 8,656.39/x
  3. Step 3: Cross multiply
    15,370.51x = 21,211.70 × 8,656.39
  4. Step 4: Simplify right side
    15,370.51x = 183,616,747.76
  5. Step 5: Solve for x
    x = 183,616,747.76/15,370.51
  6. Step 6: Final answer
    x = 11,946.04

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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.