Home / 13,830.23-19,085.08-8,461.60

Finding the Fourth Proportional to 13,830.23, 19,085.08 and 8,461.60

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Solution

The fourth proportional to 13,830.23, 19,085.08 and 8,461.60 is: 11,676.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.23 : 19,085.08 = 8,461.60 : x
  2. Step 2: Convert to fraction form
    13,830.23/19,085.08 = 8,461.60/x
  3. Step 3: Cross multiply
    13,830.23x = 19,085.08 × 8,461.60
  4. Step 4: Simplify right side
    13,830.23x = 161,490,312.93
  5. Step 5: Solve for x
    x = 161,490,312.93/13,830.23
  6. Step 6: Final answer
    x = 11,676.62

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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.